Keysight E5382-82101 Probing solutions for logic analyzer Datasheet

Keysight Technologies
Probing Solutions for Logic Analyzers
Data Sheet
Bring the full power of your Keysight Technologies, Inc. logic analyzer to your project with high quality
probing solutions
–– Wide range of solutions to meet your measurement needs
–– Soft Touch Connectorless probing
–– High-density, high-performance probing solutions
–– General-purpose probing
02 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Table of Contents
Probing for Memory System Validation��03
Reliable Connections Ensure Accuracy��04
Which Logic Analyzer?��04
Probe Selection Guide for All Keysight Logic Analyzers��05
Selecting the Optimum Probing Strategy��09
Probing Solutions for 90-pin Logic Analyzers General-Purpose Probing�� 11
Probing Solutions for 90-pin Logic Analyzers Soft Touch Connectorless Probing�� 17
Probing Solutions for 90-pin Logic Analyzers Mictor and Samtec Probing��34
Probing Solutions for 90-pin Logic Analyzers High-Speed Timing Probing��37
U4200A Series Probe/Cable Solutions for 160-pin Front Panel Connector Logic Analyzers��38
U4206A Probe, 34 Channel, Soft Touch Pro, Single-Ended,
to Four 160-pin Direct Connect to Logic Analyzer Front Panel Connectors��40
U4207A Probe, Zero Ω, 34 Channel, Soft Touch Pro, Single-Ended,
to Four 160-pin Direct Connect to Logic Analyzer Front Panel Connectors ��43
U4200 Series Direct Connect Cables for use with 16850 Series Portable Logic Analyzers��43
General-Purpose Probing Flying Lead Probing Accessories��44
40-pin and 90-pin Logic Analyzers Probe Cables��45
Probing Solutions for 40-pin Logic Analyzers General-Purpose Probing�� 47
Probing Solutions for 40-pin Logic Analyzers Designing for Logic Analysis Probing��50
Probing Solutions for 40-pin Logic Analyzers Soft Touch Connectorless Probing�� 51
Probing Solutions for 40-pin Logic Analyzers Mictor and Samtec Probing��62
Probing Solutions for 40-pin Logic Analyzers Custom Probing��70
Related Information��75
Evolving Since 1939��77
03 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing for Memory System Validation
Keysight Technologies, Inc. has the measurement tools you need to validate the very
latest memory technologies. These include logic analyzers, oscilloscopes and software
for automated compliance, decode, and protocol checking. To complement our high
speed digital instruments and software, Keysight offers probing solutions with a
comprehensive range of Ball Grid Array (BGA) interposers. When positioned between
the processor memory controller and the memory device, the interposers allow you to
make signal quality or protocol measurements with minimal effect on the system-undertest. You can choose from a large selection of existing BGA interposers or work with
Keysight’s Application Engineers to define customized probing solutions for your specific
needs.
Refer to the following publications for information on available DDR/LPDDR BGA
interposers.
Memory
type
Model number coverage
Publication title
Publication
number
DDR2
W2631B, W2632A, W2633B,
W2634A, E5826A, E5827A,
E5384A
W2630 Series DDR2 BGA
probes for logic analyzers and
oscilloscopes
5989-5964EN
DDR3
W3631A, W3633A, W3636A,
E5845A, E5847A
W3630A Series DDR3 BGA
probes for logic analyzers and
oscilloscopes
5990-3179EN
DDR4
W4631A, W4633A, W4636A,
E5847A, E5849A
W4641A, W4643A,
U4208A, U4209A
W4640A and W4630A Series
DDR4 BGA interposers for logic
analyzers
5991-4258EN
Digital BGA interposer catalog
5992-0379ENA1
LPDDR2/3/4 Custom probes through the
AEO
04 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Reliable Connections Ensure Accuracy
Signal frequency content drives probing solutions
Faster clock rates demand tighter timing tolerances, such as setup and hold
specifications. Systems with faster clock rates usually have shorter rise and fall times.
Signals with shorter transition times have more high frequency content and are more
susceptible to high frequency analog problems such as cross talk, reflections, ground
bounce, noise and emissions. Susceptibility of a system to analog problems relates to
the transition times of the signals, not the clock rate. A system with slow transition times
cannot have high clock rates. However, it is possible for a system with slower clock rates
to have signals with very fast transition times.
General-purpose probing solutions provide the analog bandwidth required to run
each logic analyzer module at its maximum clock rate. The high input impedance of
these probes, especially at high frequencies, presents a minimal load to most systems.
Systems that are operating with little margin should be designed with consideration for
both the system components and the input impedance of the probing solution being
used during debug. Input impedance specifications or equivalent load diagrams can be
found for each of the probing solutions described in this document.
Which Logic Analyzer?
For logic analyzers with 160-pin front panel connector, use probes identified in
this document as “Direct-connect probes.”
For logic analyzers with cables that use a 3M-style connector with two rows of
20 pins on 0.1-inch centers, as illustrated in Figure 1.1, use probes identified in
this document as “for analyzers with 40-pin pod connectors.”
For logic analyzers with cables that use a 90-pin, high-density connector as
illustrated in Figure 1.2, use probes identified in this document as “for analyzers
with 90-pin pod connectors.”
90-pin pod connector (pages 10 to 36)
16950B, 16951B
U4164A, U4154A/B, and 16962A
40-pin pod connector (pages 47 to 70)
16911A
16910A
16800 Series benchtop analyzers
–– Ruggedness
Probes with quality mechanical
design provide solid electrical
connections. Intermittent open
circuits would only add one more
variable to your debugging equation.
Keysight probes are mechanically
designed to relieve strain and ensure
rugged, reliable connection.
–– Immunity to Noise
Electromagnetic noise can corrupt
data captured by the logic analyzer.
Keysight probing solutions are
designed for a high immunity to
transient noise.
–– Performance
Keysight logic analyzers have
front-end circuitry that supports the
state and timing specifications of
the analyzer. This circuitry, together
with the Keysight probing solutions
described in this document, will
accurately capture the target signals
at the specified clock rates.
Other considerations
Physical connection compatibility
between various Keysight probes may
allow you to mix and match a variety
of probes and accessories. However, a
probe accessory designed for slower
clock speeds will not deliver high-speed
target performance simply because it
is used with a higher speed analyzer
module. Also, the serial connection of
multiple probe leads and/or accessories
will degrade signal integrity.
Direct connect probe/cables
(pages 37 to 39)
U4164A
U4154A/B, 16850 Series
Figure 1.1. 40-pin pod connector
–– Impedance
High input impedance ensures
minimum intrusion on your circuit.
Although many probes might be
acceptable for lower frequencies,
capacitive loading becomes
significant at higher frequencies. The
Keysight probing products perform
over a wide frequency spectrum.
Figure 1.2. 90-pin pod connector
05 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probe Selection Guide for All Keysight Logic Analyzers
Logic analyzer compatibility
–– U4164A, U4154A/B
–– 16850A Series
–– 16962A, 16951B, 16950A/B
–– 16760A, 16756A, 16755A, 16754A, 16753A
Note: U4201A logic analyzer cable(s) are required when using 90-pin probes with the U4164A, U4154A/B or 16850A Series logic analyzers.
Model number
Application
Number of channels
Supported signal
types
Maximum data rate
Minimum signal
amplitude
Connection to
target system
Input capacitance
Kit of 5 additional
retention modules
Number of probes
required per
U4201A cable
1.
Soft touch connectorless probes
All soft touch probes are supplied with 5 retention modules
E5406A
E5398A
E5402A 1
E5390A
Quick connection to many channels in a small footprint without a header designed into the target
17
34
34
16 data, 1 clock
32 data, 2 clocks
32 data, 2 clocks
Differential or single-ended clock single-ended data
E5405B
4 Gb/s
250 mV p-p
4 Gb/s
250 mV p-p
4 Gb/s
250 mV p-p
Requires half-size soft touch
footprint designed into the
target
< 0.7 pF
E5396-68702
Requires Pro Series soft touch
footprint designed into the
target
< 0.7 pF
E5403A
Requires original soft touch
footprint designed into the
target
< 0.7 pF
E5387-68701
17
16 data, 1 clock
Differential or single-ended
clock and or data
4 Gb/s
Vmax - Vmin
200 mV
Requires Pro Series soft touch
footprint designed into the
target system
< 0.7 pF
E5403A
1
1
1
2
The E5402A Soft Touch Pro probe is a low profile right angle version of the E5406A above.
06 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probe Selection Guide for All Keysight Logic Analyzers (Continued)
Logic analyzer compatibility
–– U4164A, U4154A/B
–– 16850A Series
–– 16962A, 16951B, 16950A/B
–– 16760A, 16756A, 16755A, 16754A, 16753A
Note: U4201A logic analyzer cable(s) are required when using 90-pin probes with the U4164A, U4154A/B or 16850A Series logic analyzers.
Model number
Application
Number of
channels
Supported signal
types
Maximum data
rate
Minimum signal
amplitude
Connection to
target system
Samtec probes
E5378A
E5379A
Quick connection to many channels in a small footprint
34
17
32 data, 2 clocks
16 data, 1 clock
Differential or
Differential or
single-ended clock
single-ended clock singleand or data
ended data
1.5 Gb/s
1.5 Gb/s
Mictor probes
E5380B
600 Mb/s
General purpose flying lead sets
E5382B
E5381B
Flexible connection to many signals
17
17
16 data, 1 clock
16 data, 1 clock
Differential or singleDifferential or
ended clock and or data
single-ended clock
single-ended data
1.5 Gb/s
1.5 Gb/s
250 mV p-p
300 mV p-p
250 mV p-p
Requires 38-pin Mictor
connector designed into
the target system
Compatible with a
wide assortment
of accessories to
connect to individual
leads
Requires 100-pin Samtec
connector designed into the
target system
Vmax - Vmin
200 mV
Requires 100-pin
Samtec connector
designed into the
target system
34
32 data, 2 clocks
Single-ended clock
single-ended data
Input capacitance 1.5 pF
1.5 pF
3.0 pf
Additional
See Table 4 page 34 for shrouds and pc board connectors
supplies
2
1
Number of probes 1
required per
U4201A cable
Vmax - Vmin
200 mV
Compatible with a
wide assortment of
accessories to connect to
individual leads
1.3 pF
See Table 1 (page 10)
0.9 pF
See Figure 4.4 (page 13)
2
2
07 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probe Selection Guide for All Keysight Logic Analyzers (Continued)
U4200A Series direct-connect probes selection guide
Direct connect probes connect directly to the DUT and the 160-pin front panel connector of the compatible logic analyzers listed
below.
Logic analyzer compatibility
–– U4164A, U4154A/B
–– 16850A Series
Note: The U4206A is for use only with the U4164A when in quad sample state mode or ¼ channel timing mode.
Model number
Application
Number of channels
Supported signal
types
Maximum data rate
Minimum signal
amplitude
Connection to
target system
Input capacitance
Additional supplies
Orderable as
1.
Soft touch connectorless probes
Mictor probe
U4206A (see note above)
U4204A
Quick connection to many channels in a small footprint without
a header designed into the target system
34
34
32 data, 2 clock
32 data, 2 clock
Differential or single-ended
Differential or single-ended
clock, single-ended data
clock, single-ended data
4 Gb/s
3.2 Gb/s
Vmax – Vmin
Vmax – Vmin
300 mV/200 mV 1
200 mV
Requires Pro Series soft touch Requires Pro Series soft touch
footprint designed into the
footprint designed into the
target
target
< 0.7 pF
< 0.7 pF
Kit of 5 additional retention
Kit of 5 additional retention
modules
modules
E5403A
E5403A
U4205A
Quick connection to many
signals in a small footprint
34
32 data, 2 clock
Single-ended clock, singleended data
600 Mb/s
Vmax – Vmin
200 mV
Requires 38-pin Mictor
connector designed into the
target system
3.0 pF
See Table 1 for PC board
connectors and shrouds
300 mV input required for data rates greater than 2.5 Gb/s.
General purpose flying lead
set
U4203A
Flexible connection to individual
signals
34
32 data, 2 clock
Differential or single-ended
clock, single-ended data
1.5 Gb/s
Vmax – Vmin
200 mV
Compatible with a wide
assortment of accessories to
connect to individual leads
< 0.9 pF
See Figure for additional leads
and grabbers
08 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probe Selection Guide for All Keysight Logic Analyzers (Continued)
40-pin probes selection guide
Compatible with Keysight models 16910A/11A, 16800 Series, 16750/51/52A/B, 1674X Series, 1671x Series, 165xx Series modules,
1690 Series, 1680 Series, 1670 Series, 1660 Series, 1650 Series, and E9340 logic analyzers.
Model number
Application
Soft touch connectorless probes
Supplied with five retention modules
E5396A
E5404A
E5394A
Quick connection to many channels in a small footprint without a
header designed into the target system
Samtec probe
E5385A
Quick connection
to many signals in a
small footprint
34
32 data, 2 clock
Mictor probe
E5346A
Quick connection
to many signals in a
small footprint
34
32 data, 2 clock
General purpose
flying lead set
E5383A
Flexible connection
to individual
signals
17
16 data, 1 clock
Equivalent to the
logic analyzer data
rate the probe is
attached to
600 mV p-p
Compatible with a
wide assortment
of accessories
to connect to
individual leads
1.5 pF
See Figure for
additional leads
and grabbers
Number of
channels
Supported signal
types
Maximum data
rate
17
34
34
16 data, 1 clock
32 data, 2 clock
32 data, 2 clock
All probes: single-ended clock, single-ended data
> 2.5 Gb/s
> 2.5 Gb/s
> 2.5 Gb/s
1.5 Gb/s
Minimum signal
amplitude
Connection to
target system
500 mV p-p
500 mV p-p
500 mV p-p
500 mV p-p
Equivalent to the
logic analyzer data
rate the probe is
attached to
500 mV p-p 1
Requires half-size
soft touch footprint
designed into the
target
Requires Pro
Series soft touch
footprint designed
into the target
Requires original
soft touch footprint
designed into the
target
Requires 100‑pin
Samtec connector
designed into the
target system
Requires 38-pin
Mictor connector
designed into the
target system 2
Input capacitance < 0.7 pF
Additional supplies Additional five
retention modules
< 0.7 pF
Additional five
retention modules
< 0.7 pF
Additional five
retention modules
1.5 pF
See Table 1 for PC
board connectors
and shrouds
3.0 pF
See Table 1 for pc
board connectors
and shrouds
Orderable as
Order kit E5403A
Order kit
E5387‑68701
Order kit
E5396‑68702
1. Model E5339A low voltage Mictor probe = 250 mV p-p.
2. Model E5351A Unterminated Mictor probe requires isolation networks to be provided on the target system. See page 64 for details.
09 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Selecting the Optimum Probing Strategy
What is the best way to probe your signals, given their unique characteristics?
Available probing options for all Keysight logic analyzers
Connectorless
Connector Samtec
Connection to the
target system
Requires 100-pin Samtec connector designed into the target
system
Advantages
Disadvantages
Requires appropriate pro series soft touch or original soft touch
footprint designed into the target system. Retention module is
used for alignment and mechanical retention only.
–– Reduces cost and shortens the design cycle by eliminating
a connector
–– Eliminates the capacitive loading of a connector, which
gives you the lowest-loading (less than 0.7 pF),
highest-performance (> 2.5 Gb/s rate) logic analyzer
probing option available
–– Pliable micro spring-pin design with four-point crown tip
allows you to easily attach and get a reliable, repeatable
contact even for contaminated or uneven board surfaces
–– Flow through signal routing streamlines design flow and
maintains differential pair spacing to ensure constant
differential-mode impedance and virtually eliminate stubs
–– Acquire high-speed single-ended or differential signals
without impacting the performance of your circuit, while
providing an accurate representation to the logic analyzer
–– Provides ability to attach retention module to probe and
browse multiple signals by pressing the probe against the
target device
–– Compatible with all board finishes, including lead free
–– Requires up-front design of probe footprint on PCB
–– High-performance connector solution (1.5 pF loading,
1.5 Gb/s data rate)
–– Supports single-ended and differential signals
–– 3 times the performance and half the loading of Mictor
solution
–– Added cost to include connector
–– Requires up-front design of connector on PCB
10 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Selecting the Optimum Probing Strategy (Continued)
What is the best way to probe your signals, given their unique characteristics?
Available probing options for all Keysight logic analyzers
Connection to the
target system
Advantages
Disadvantages
Connector Mictor
Flying leads
Requires 38-pin Mictor connector designed into the target
system
–– Reliable and cost-effective solution for lower data rates
(600 Mb/s)
–– Supports single-ended signaling
–– 3.0 pF capacitive loading
Connects to individual, widely dispersed signals at IC pins,
traces, pads, vias
–– High-performance accessories are based on award
winning, InfiniiMax scope probes
–– Compatible with a wide variety of accessories to connect
to IC pins, traces, pads, vias
–– Maintains a one-to-one signal-to-ground ratio
–– Doesn’t require up-front design effort
–– More time-consuming to connect
–– Added cost to include connector
–– Combination of through-hole and surface-mount
technology can make signal routing and board component
loading difficult
–– Requires up-front design of connector on PCB
11 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
General-Purpose Probing
E5382B single-ended flying
lead probe set
The E5382B is a 17-channel single-ended
flying lead probe compatible with logic
analyzers with a 90-pin pod connection.
It is capable of acquiring data at the
maximum rates of the logic analyzer it is
connected to. The E5382B is useful for
acquiring signals from dispersed locations
or when a mass connection scheme is not
available. The E5382B has the following:
–– 16 single-ended data inputs
–– One differential or single-ended clock
input
–– Variety of supplied accessories
Table 1. Accessories
Part number
E5382-82103
Description
Probe pin kit, 2 resistive pins per kit
E5382-82101
High-frequency probing kit, 2 resistive signal
wires and 4 ground wires per kit
16517-82109
Grabber clip kit, 20 grabbers per kit
16517-82105
Ground extender kit, 20 ground extenders
per kit
16517-82106
Right-angle ground lead kit, 20 ground leads
per kit
Unused clock inputs can be used as data
inputs.
Figure 4.1. E5382B flying lead set.
12 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
General-Purpose Probing (Continued)
Suggested configurations and characteristics
Table 2. E5382B suggested configurations and characteristics
Configuration
Description
130 Ω resistive signal pin (orange) and
solder-down ground lead
Total lumped input C Maximum recommended state
speed
1.3 pF
1.5 Gb/s
5 cm resistive signal lead (can be soldereddown) and solder-down ground lead
1.6 pF
1.5 Gb/s
Flying lead and ground extender
1.4 pF
1.5 Gb/s
Grabber clip and right-angle 2.0 pf ground
lead
2.0 pF
600 Mb/s
13 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
General-Purpose Probing (Continued)
Available accessories
Note: Examples of convenient connection which may result in degraded performance.
Ground connector
It is essential to ground every tip that is in
use. For best performance at high speeds,
every tip should be grounded individually
to ground in the system under test.
Adapting to coaxial connectors
The Keysight E9638A probe tip to BNC
adapter can be used to connect one of
the flying lead probes of the E5382B to
a BNC connector. To probe other coaxial
connectors, use the E9638A adapter, a
BNC termination, and an adapter to the
other type of coaxial connector. Refer to
Figure 4.3.
Probe tip
Probe tip
5063-2174 probe tip to
BNC adapter
5063-2174 probe tip to
BNC adapter
BNC 50 Ω feedthrough
termination adapter
BNC 50 Ω feedthrough
termination adapter
BNC connector
BNC to SMA, SMB, SMC, or
other coaxial adapter
SMA, SMB, SMC, or other
coaxial connector
Figure 4.2. 5063-2174 BNC to probe tip
adapter.
Figure 4.3. Recommended configurations to probe RF coaxial connectors with the E5382B flying
lead probes.
14 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
General-Purpose Probing (Continued)
E5381B differential flying-lead
probe set
The E5381B is a 17-channel differential
flying-lead probe compatible with logic
analyzers with a 90-pin pod connection.
It is capable of acquiring data at the
maximum rates of the logic analyzer it is
connected to. The E5381B is useful for
acquiring signals from dispersed locations
or when a mass connection scheme is not
available. The E5381B has the following:
–– 16 differential or single-ended data
inputs
–– One differential or single-ended clock
input
–– Variety of supplied accessories
Unused clock inputs can be used as data
inputs.
Coaxial tip
resistor
3-pin
header
Socket
adapter
Damped wire
82 Ω resistor trimming template
Figure 4.4. E5381B differential flying-lead probe set accessories.
Replaceable parts and additional accessories
Description
82 Ω resistor trimming template
Accessory kit - coaxial tip resistors (82 Ω)
Accessory kit - socket adapter
Accessory kit - damped wire (160 Ω)
Accessory kit - 3-pin header
Cable - main
Figure 4.5. E5381B differential flying-lead probe set.
Quantity
1
34
34
34
34
1
Keysight part number
01131-94309
E5381-82101
E5381-82102
E5381-82105
E5381-82104
E5381-61603
15 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
General-Purpose Probing (Continued)
Suggested configurations and characteristics
Table 3. E5381B suggested configurations and characteristics
Configuration
Description
Coaxial tip
Resistor (82 Ω blue)
Solder attach to components, traces, pads,
or VIAs.
Total lumped input C
0.9 pF
Maximum recommended state speed
1.5 Gb/s
3-pin header
1.0 pF
1.5 Gb/s
Socket adapter
1.1 pF
1.5 Gb/s
Damped wire
Solder attach to components, traces, pads,
or VIAs.
1.3 pF
1.5 Gb/s
16 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
General-Purpose Probing (Continued)
Recommended probe configurations
For the best performance, use the following configurations. The configurations are listed in the recommended order.
Recommended probe configurations
For the best performance, use the following configurations. The configurations are listed in the recommended order.
Flexible direct ground pin
Ground extender
SMT tack-on signal/ground
Pin and socket ground lead
Make contact with
the flexible ground
first, then flex it to
place the signal
pin.
Signal
Signal
Ground
Signal red
Ground
Signal
Ground
Ground
black
0.635mm (0.025")
square pin or
0.66-0.84mm
diameter pin
Figure 4.6. Probing configurations that give the best signal fidelity.
Signal
Ground
0.635mm (0.025")
square pin or
0.66-0.84mm
diameter pin
17 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Soft Touch Connectorless Probing
Several options are available for connecting Keysight logic analyzers with 90-pin pod
connectors to a target system using mass connections.
Keysight Pro Series soft touch connectorless logic analyzer probes
Keysight has developed connectorless logic analyzer probes based on soft touch
probing technology. Connectorless logic analyzer probing removes the connector that
is traditionally attached to the target board and replaces it with an array of probe pads.
This reduces the probe load on the target by eliminating the loading associated with
the physical body of the connector. Additionally, this streamlines the design flow by
eliminating the need to assign a logic analyzer connector to the bill of material of your
board, procuring those connectors and then having them loaded onto your board.
Keysight’s soft touch connectorless probes use micro spring-pin technology to provide
reliable contact which is not dependent on the planarity of the PC board or the plating
processes used to fabricate the board. No special cleaning processes are required when
using Keysight’s soft touch probes.
The new Keysight Pro Series soft touch connectorless probes offer a 30% smaller
footprint than the original soft touch probes and are the basis for the industry standard
connectorless probing footprint.
The probes use a retention module that ensures soft touch pin-to-PC board pad
alignment and holds the probe in place while in use. The Pro Series soft touch uses a
“top-side” mountable retention module. The retention module is mounted on the same
side of the board as the probing footprint so there is no need to access the back-side
of the board. Because there is no requirement for the retention module pins to extend
beyond the back-side of the board, the retention module is compatible with virtually any
board thickness.
Insert
Figure 4.7. “Top-side” mountable retention module.
Solder pins from
top of board
18 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
E5405B Differential Pro series soft touch connectorless probe
The E5405B is a 17-channel differential Pro Series soft touch connectorless probe
compatible with all Keysight logic analyzers that have a 90-pin pod connector. It is
capable of acquiring data at the maximum rates of the logic analyzer it is connected to.
Features
–– No connector on the target board
–– Top-side retention module
–– Industry-standard connectorless footprint
–– 17 channels, differential or single-ended clock and data
–– Extremely low, < 0.7 pF, equivalent load capacitance
–– Capable of data rates of 4 Gb/s (maximum rate dependent on analyzer used)
–– 200 mV Vmax–Vmin minimum signal amplitude
–– Robust and reliable soft touch technology
Unused clock inputs can be used as data inputs.
The E5405B uses the same retention module as the E5404A and E5406A Pro Series soft
touch connectorless probe.
A kit of five retention modules is shipped with each Pro Series soft touch probe.
Additional kits can be ordered using Keysight part number E5403A.
E5406A/E5402A Pro Series soft touch connectorless probes
The E53406A/E5402A are 34-channel single-ended Pro Series soft touch connectorless
probe compatible with all Keysight logic analyzers that have a 90-pin pod connector.
The E5402A is a low profile right angle version of the E5406A probe.
Features
–– No connector on the target board
–– Top-side mount retention module
–– Industry-standard connectorless footprint
–– 34 channels, single-ended or differential clock and single-ended data
–– Extremely low, < 0.7 pF, equivalent load capacitance
–– Capable of data rates of 4 Gb/s (maximum rate dependent on analyzer used)
–– 250 mV p-p minimum signal amplitude
–– Robust and reliable soft touch technology
Unused clock inputs can be used as data inputs.
The E5406A (used with logic analyzers with a 90-pin cable connector) uses the same
footprint, pinout, and retention module as the E5404A and E5402A Pro Series soft touch
connectorless probes (used with logic analyzers with a 40-pin cable connector).
A kit of five retention modules is shipped with each Pro Series soft touch probe.
Additional kits can be ordered using Keysight part number E5403A. The low profile
E5402A probe uses retention module Keysight part number E5412A.
19 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
E5390A single-ended soft touch
connectorless probe
The E5390A is a 34-channel singleended soft touch connectorless probe
compatible with all Keysight logic
analyzers that have a 90-pin pod
connector. It is capable of acquiring
data at the maximum rates of the logic
analyzer it is connected to. The probe has
the following inputs:
–– 32 single-ended data inputs
–– Two differential or single-ended clock
inputs
–– < 0.7 pf input capacitance
–– 250 mV p-p minimum signal
amplitude
Unused clock inputs can be used as data
inputs.
The E5390A (used with logic analyzers
with a 90-pin pod connector) uses the
same footprint, pinout and retention
module as the E5394A single-ended
soft touch connectorless probe (used
with logic analyzers with a 40-pin pod
connector).
E5398A half-size soft touch connectorless probe
The E5398A is a small space saving probe compatible with all Keysight logic analyzers
that have a 90-pin cable connector. It is a 17-channel, single-ended probe capable of
capturing data at the maximum rates of the logic analyzer it is connected to. The probe
has the following inputs:
–– 16 single-ended data inputs
–– One differential or single-ended clock input
–– < 0.7 pf equivalent load capacitance
–– 250 mV p-p minimum signal amplitude
Unused clock inputs can be used as data inputs.
The E5398A (used with logic analyzers with a 90-pin cable connector) uses the
same footprint, pinout, and retention module as the E5396A single-ended soft touch
connectorless probe (used with logic analyzers with a 40-pin cable connector).
More information about soft touch connectorless probes is available on the web at
www.keysight.com/find/softtouch.
Logic analyzer probe cables
(90-pin pod connector)
Logic analyzer probe cables
(90-pin pod connector)
A kit of five retention modules is shipped
with each soft touch probe. Additional
kits can be ordered using Keysight part
number E5387-68701.
E5390A
single-ended soft touch probe
Retention
module
Pads and mounting holes
on target system
Figure 4.8. Soft touch probes.
20 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Probe dimensions
Top view E5405B
The following figures show dimensions,
footprint, and pinout information you
will need to design your target system
board for use with the Keysight soft touch
probes.
Side view E5405B
Figure 4.9. E5405B probe dimensions.
Top view E5406A
Side view E5406A
Figure 4.10. E5406A probe dimensions.
21 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Figure 4.11. Pro Series soft touch retention module dimensions, part number E5403A.
Pro Series soft touch retention
module dimensions
The following dimensions show the soft
touch probe attached to the retention
module. The retention module is mounted
on the PC board.
Figure 4.12. Pro Series soft touch side-by-side dimensions with retention module, part number
E5403A.
22 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Top view E5402A
Side view E5402A
Figure 4.13. E5402A probe dimensions.
Figure 4.14. E5412A retention module dimensions.
Figure 4.15. E5412A side-by-side dimensions.
23 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Drawing notes:
1
2
Maintain a solder mask web
between pads when traces are
routed between the pads on the
same layer. The solder mask may
not encroach onto the pads within
the pad dimension shown.
VIAs not allowed on these pads.
VIA edges may be tangent to pad
edges as long as a solder mask
web between VIAs and pads is
maintained.
VIA
Pad
3
4
5
6
Surface finishes on pads should be
HASL immersion silver, or gold over
nickel.
This footprint is compatible with
retention module Keysight part
number E5405-68702.
This through hole is not used with
the Keysight retention module.
Plated through hole should not be
tied to ground plane for thermal
relief.
Figure 4.16. Pro Series soft touch footprint dimensions (see drawing notes).
D0
D1
GND
D4
D5
GND
CK 1+
GND/NC
GND
D10
D11
GND
D14
D15
GND
D2
D3
GND
D6
Logic
D7
analyzer
GND
even pod
D8
D9
GND
D12
D13
GND
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
GND
D2
D3
GND
D6
D7
GND
D8
D9
GND
D12
D13
GND
D0
D1
GND
D4
D5
GND
GND/NC
CK 2+
GND
D10
D11
GND
D14
D15
Logic
analyzer
odd pod
Figure 4.17. Pad numbers for E5404/06A 34-channel single-ended probes.
24 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
E5404/06A 34-channel singleended probe
Signal name
Pad #
D0
A1
→
D1
A2
→
Ground
A3
D4
A4
→
D5
A5
→
Ground
A6
Clock 1+
A7
→
GND/NC/Clock 1–
A8
Ground
A9
D10
A10 →
D11
A11 →
Ground
A12
D14
A13 →
D15
A14 →
Ground
A15
D2
A16 →
D3
A17 →
Ground
A18
D6
A19 →
D7
A20 →
Ground
A21
D8
A22 →
D9
A23 →
Ground
A24
D12
A25 →
D13
A26 →
Ground
A27
Logic analyzer
Channel
0
1
Pod
Whichever pod is
connected to “Odd” on
the E5404/06A probe
4
5
Clock
10
11
14
15
2
3
6
7
8
9
12
13
Whichever pod is
connected to “Even”
on the E5404/06A
probe
E5404/06A 34-channel singleended probe
Signal name
Pad #
Ground
B1
D2
B2
→
D3
B3
→
Ground
B4
D6
B5
→
D7
B6
→
Ground
B7
D8
B8
→
D9
B9
→
Ground
B10
D12
B11 →
D13
B12 →
Ground
B13
D0
B14 →
D1
B15 →
Ground
B16
D4
B17 →
D5
B18 →
Ground
B19
GND/NC/Clock 2–
B20
Clock 2+
B21 →
Ground
B22
D10
B23 →
D11
B24 →
Ground
B25
D14
B26 →
D15
B27 →
Logic analyzer
Channel
2
3
Pod
Whichever pod is
connected to “Odd” on
the E5404/06A probe
6
7
8
9
12
13
0
1
4
5
Clock
10
11
14
15
Whichever pod is
connected to “Even” on
the E5404/06A probe
25 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Figure 4.18. Pad numbers for E5405B 17-bit differential probe.
26 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
E5405B differential probe
Signal name
Pad #
D0 (+)
A1
D0 (–)
A2
Ground
A3
D2 (+)
A4
D2 (–)
A5
Ground
A6
D4 (+)
A7
D4 (–)
A8
Ground
A9
D6 (+)
A10
D6 (–)
A11
Ground
A12
NC
A13
NC
A14
Ground
A15
D8 (+)
A16
D8 (–)
A17
Ground
A18
D10 (+)
A19
D10 (–)
A20
Ground
A21
D12 (+)
A22
D12 (–)
A23
Ground
A24
D14 (+)
A25
D14 (–)
A26
Ground
A27
→
Logic analyzer
Channel
Pod
0
Whichever pod is
plugged into the
E5405B probe
2
→
4
→
6
→
→
8
→
10
→
12
→
14
E5405B differential probe
Signal name
Pad #
Ground
B1
D1 (–)
B2
D1 (+)
B3
Ground
B4
D3 (–)
B5
D3 (+)
B6
Ground
B7
D5 (–)
B8
D5 (+)
B9
Ground
B10
D7 (–)
B11
D7 (+)
B12
Ground
B13
Clock–
B14
Clock+
B15
Ground
B16
D9 (–)
B17
D9 (+)
B18
Ground
B19
D11 (–)
B20
D11 (+)
B21
Ground
B22
D13 (–)
B23
D13 (+)
B24
Ground
B25
D15 (–)
B26
D15 (+)
B27
→
Logic analyzer
Channel
Pod
Whichever pod is
plugged into the
E5405B probe
1
→
3
→
5
→
7
→
Clock
→
9
→
11
→
13
→
15
27 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Probe dimensions
The following figures show dimensions,
footprint, and pinout information you
will need to design your target system
board for use with the Keysight soft touch
probes.
Top view E5390A
45.87
mm
________
1.806 in.
160.79
mm
_________
6.330 in.
64.48
mm
________
2.538 in.
15.26
21.08
mm
________
0.830 in.
8.76
mm
_______
0.345 in.
34.61
mm
________
1.363 in.
27.93
mm
________
1.100 in.
6.63
mm
_______
0.261 in.
Side view E5390A
7.54
mm
_______
0.297 in.
5.31
mm
_______
0.209 in.
Top view E5398A
45.720 mm
_________
18.000 in.
48.60 mm
________
1.913 in.
8.76 mm
_______
0.345 in.
21.61 mm
________
0.851 in.
21.11 mm
________
0.831 in.
61.40 mm
________
2.417 in.
Side view E5398A
22.05 mm
________
0.868 in.
15.93 mm
________
0.627 in.
11.00
mm
_______
0.433 in.
7.54 mm
_______
0.297 in.
5.31 mm
_______
0.209 in.
Figure 4.19. Probe dimensions.
28 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Retention module dimensions
The soft touch probes are attached
to the PC board using a retention module
which ensures pin-to-pad alignment
and holds the probe in place. A board
thickness of up to 2.54 mm (0.100 inch)
is recommended. Insert the retention
module into the board, noting the keying
pin, and solder the four alignment pins to
the backside of the board.
34-channel retention module dimensions
4.83 mm
_______
0.190 in.
6.99 mm
_______
0.275 in.
3.58 mm
_______
0.141 in.
2.72 mm
_______
0.107 in.
0.64 mm
_______
0.025 in.
4.98 mm
_______
0.196 in.
34.04 mm
________
1.340 in.
29.97
mm
________
1.180 in.
17-channel retention module dimensions
4.83 mm
_______
0.190 in.
6.99 mm
_______
0.275 in.
17.98
mm
_______
0.708 in.
3.58 mm
_______
0.141 in.
22.05
mm
_______
0.868 in.
4.98 mm
_______
0.196 in.
2.72 mm
_______
0.107 in.
0.64 mm
________
0.025 in.
Figure 4.20. Retention module dimensions.
Probe and retention module
dimensions
The following dimensions show the soft
touch probe attached to the retention
module. The retention module is mounted
on the PC board.
34-channel probe and retention module dimensions
25.35 mm
________
0.998 in.
2.54 mm
_______
0.100 in.
8.13 mm
_______
0.320 in.
Minimum
recommended
35.05 mm
________
1.380 in.
Minimum
recommended
17-channel probe and retention module dimensions
2.54 mm
_______
0.100 in.
29.61 mm
________
1.166 in.
8.13 mm
_______
0.320 in.
Minimum
recommended
23.06 mm
________
0.908 in.
Minimum
recommended
Figure 4.21. Probe and retention module dimensions.
29 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Probe footprint dimensions
Use these probe footprint dimensions for the PC board pads and holes for attaching the
retention module.
Soft touch
34.04 mm
29.97 mm
26.00 mm
1.00 mm typ
1.99 mm
B
0.81 0.03 mm
(keying/alignment hole)
2.03 mm
C
3.49 mm
2.53 mm
0.79 0.08 mm pth
R 0.29 mm
.15
.15 B
B
B27
B1
A27
A1
1.27 mm
2.41 mm
footprint keep
out boundary
0.71 mm
pad height 54x
1 2
A
0.58 mm
pad width 54x
1
1.35 mm
retention hole pads
both sides
6.99 mm
3.25 mm
1.83 mm
2
0.79 0.08 mm
pth 4x
Notes:
1. Must maintain a solder mask web between pads when traces are
routed between the pads on the same layer. Soldermask may not
encroach onto the pads within the pad dimension shown.
4. Footprint is compatible with retention module,
Keysight part # E5387-68702.
Half-size
soft touch
2. Via in pad not allowed on these pads. Via edges may be tangent
5. Retention module dimensions are 34.04 mm x 7.01 mm x 4.98 mm
tall relative to the top surface of the PDB. Retention pins extend
34.04 mm
to pad edges as long as a solder mask web between vias and pads
4.32 mm beyond the bottom surface of the RM through the PCB.
29.97 mm
is maintained.
Assume normal artwork tolerances for pad size dimensions.
26.006.mm
3. Permissible surface finishes on pads are HASL, immersion silver,
1.00 mm typ
or gold over nickel.
1.99 mm
B
0.81 0.03 mm
(keying/alignment hole)
2.03 mm
C
3.49 mm
2.53 mm
0.79 0.08 mm pth
R 0.29 mm
.15
.15 B
B
B27
B1
A27
A1
1.27 mm
2.41 mm
0.71 mm
pad height 54x
1 2
footprint keep
out boundary
0.58 mm
pad width 54x
1
2
A
1.35 mm
retention hole pads
both sides
6.99 mm
3.25 mm
1.83 mm
0.79 0.08 mm
pth 4x
Notes:
1. Must maintain a solder mask web between pads when traces are
routed between the pads on the same layer. Soldermask may not
encroach onto the pads within the pad dimension shown.
2. Via in pad not allowed on these pads. Via edges may be tangent
to pad edges as long as a solder mask web between vias and pads
is maintained.
3. Permissible surface finishes on pads are HASL, immersion silver,
or gold over nickel.
Figure 4.22. Footprint dimensions.
4. Footprint is compatible with retention module,
Keysight part # E5387-68702.
5. Retention module dimensions are 34.04 mm x 7.01 mm x 4.98 mm
tall relative to the top surface of the PDB. Retention pins extend
4.32 mm beyond the bottom surface of the RM through the PCB.
6. Assume normal artwork tolerances for pad size dimensions.
30 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Pinout for the E5387A
differential soft touch probe
B1
B27
D0 D1 G D2 D3 G D4 D5 G D6 D7 G CLK G D8 D9 G D10 D11 G D12 D13 G D14 D15 G NC
A1
The following graphic and table show the
E5387A differential soft touch probe pad
numbers and logic analyzer pod inputs.
A27
nD0 nD1 G nD2 nD3 G nD4 nD5 G nD6 nD7 G nCLK G nD8 nD9 G nD10nD11 G nD12nD13 G nD14nD15 G NC
Footprint keep out boundary
Figure 4.23. Pinout.
E5387A differential probe
Negative signals
Signal name
Pad #
D0 (–)
A1
D1 (–)
A2
Ground
A3
D2 (–)
A4
D3 (–)
A5
Ground
A6
D4 (–)
A7
D5 (–)
A8
Ground
A9
D6 (–)
A10
D7 (–)
A11
Ground
A12
Clock (–)
A13
Ground
A14
D8 (–)
A15
D9 (–)
A16
Ground
A17
D10 (–)
A18
D11 (–)
A19
Ground
A20
D12 (–)
A21
D13 (–)
A22
Ground
A23
A24
D14 (–)
D15 (–)
A25
Ground
A26
N/C
A27
Logic analyzer
Positive signals
Signal name
D0 (+)
D1 (+)
Ground
D2 (+)
D3 (+)
Ground
D4 (+)
D5 (+)
Ground
D6 (+)
D7 (+)
Ground
Clock (+)
Ground
D8 (+)
D9 (+)
Ground
D10 (+)
D11 (+)
Ground
D12 (+)
D13 (+)
Ground
D14 (+)
D15 (+)
Ground
N/C
Pad #
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
→
→
Channel
0
1
→
→
2
3
→
→
4
5
→
→
6
7
→
Clock
→
→
8
9
→
→
10
11
→
→
12
13
→
→
14
15
Pod
Whichever pod is plugged into the E5387A probe
31 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
B1
B13
D0
D2
G
D4
D6
G
D8
D10
G
D12
D14
G
CLK
D1
D3
G
D5
D7
G
D9
D11
G
D13
D15
G
NCLK
A1
A13
Figure 4.24. Pinout.
E5398A 17-channel singleended probe
Signal name
Pad #
D1
A1
D3
A2
Ground
A3
D5
A4
D7
A5
Ground
A6
D9
A7
D11
A8
Ground
A9
D13
A10
D15
A11
Ground
A12
Clock (–)
A13
→
→
Logic analyzer
Channel
Pod
1
Whichever pod is
plugged into the
3
E5398A probe
5
7
→
→
9
11
→
→
13
15
→
n/a
→
→
E5398A 17-channel single-ended
probe
Signal name
Pad #
D0
B1
→
D2
B2
→
Ground
B3
D4
B4
→
D6
B5
→
Ground
B6
D8
B7
→
D10
B8
→
Ground
B9
D12
B10 →
D14
B11 →
Ground
B12
Clock (+)
B13 →
Logic analyzer
Channel
Pod
0
Whichever pod is
plugged into the
2
E5398A probe
4
6
8
10
12
14
n/a
32 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Pinout for the E5390A
single-ended soft touch probe
The following graphic and table show the
E5390A single-ended soft touch probe
pad numbers and logic analyzer pod
inputs.
POD 1
B1
POD 2
B27
D0 D2 G D4 D6 G D8 D10 G D12 D14 G CLK G D0 D2 G D4 D6 G D8 D10 G D12 D14 G CLK
A1
A27
D1 D3 G D5 D7 G D9 D11 G D13 D15 G nCLK G D1 D3 G D5 D7 G D9 D11 G D13 D15 G nCLK
POD 1
POD 2
Figure 4.25. Pinout.
E5390A single-ended probe
Signal name
Pad #
D1
A1
D3
A2
Ground
A3
D5
A4
D7
A5
Ground
A6
D9
A7
D11
A8
Ground
A9
D13
A10
D15
A11
Ground
A12
Clock (–)
A13
D0
B1
D2
B2
Ground
B3
D4
B4
D6
B5
Ground
B6
D8
B7
D10
B8
Ground
B9
D12
B10
D14
B11
Ground
B12
Clock (+)
B13
→
→
Logic analyzer
Channel
Pod
1
Whichever pod is
connected to “Odd” on
3
the E5390A probe
5
7
→
→
9
11
→
→
13
15
→
→
→
Clock
0
2
→
→
4
6
→
→
→
→
8
10
→
→
12
14
→
Clock
E5390A single-ended probe
Signal name
Pad #
Ground
A14
D1
A15
D3
A16
Ground
A17
D5
A18
D7
A19
Ground
A20
D9
A21
D11
A22
Ground
A23
D13
A24
D15
A25
Ground
A26
Clock (–)
A27
Ground
B14
D0
B15
D2
B16
Ground
B17
D4
B18
D6
B19
Ground
B20
D8
B21
D10
B22
Ground
B23
D12
B24
D14
B25
Ground
B26
Clock (+)
B27
→
→
Logic analyzer
Channel
Pod
Whichever pod is
connected to “Even” on
1
the E5390A probe
3
→
→
5
7
→
→
9
11
→
→
13
15
→
Clock
→
→
0
2
→
→
4
6
→
→
8
10
→
→
12
14
→
Clock
33 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Equivalent probe loads
The following probe load models are based on in-circuit measurements made with a
Keysight 8753E 6 GHz network analyzer and a Keysight 54750A TDR/TDT using a 50 Ω
test fixture. The following schematic accurately models the probe load out to 6 GHz. PC
board pads are not included.
Cshnt1
.350 pF
D1
L11
0.63 nH
L12
Rtip1
1.17 nH
20 K
Rtrm1
75
C12
0.280 pF
Cm12
0.070 pF
+0.75 V
Rgnd1
0.5
Cshnt2
.350 pF
D0
L21
0.63 nH
C22
0.280 pF
Rgnd2
0.5
Figure 4.26. Equivalent probe load model.
L22
Rtip2
1.17 nH
20 K
Rtrm2
75
+0.75 V
34 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Mictor and Samtec Probing
E5378A 100-pin single-ended probe
The E5378A is a 34-channel single-ended Samtec probe capable of capturing data up to
1.5 Gbits/sec (see Figures 4.31 and 4.33 for probe dimensions and equivalent load). The
probe has the following inputs:
–– 32 single-ended data inputs, in two groups (pods) of 16.
–– Two differential clock inputs. Either or both clock inputs can be acquired as data
inputs if not used as a clock.
–– Two data threshold reference inputs, one for each pod (group of 16 data inputs).
E5379A 100-pin differential probe
The E5379A is a 17-channel differential Samtec probe capable of capturing data up to
1.5 Gbits/sec (see Figures 4.33 and 4.34 for probe dimensions and equivalent load). The
probe has the following inputs:
–– 16 differential data inputs.
–– One differential clock input.
–– The clock input can be acquired as a data input if it is not used as a clock.
Refer to Table 4 on page 34 for part numbers for mating connectors and shrouds.
E5378A single-ended probe
Probing connector kit
Shrouds (5)
Figure 4.27. Keysight E5378A probe.
100-pin
connectors (5)
See Table 8 for part numbers
E5379A differential probe
Probing connector Kit
Shrouds (5)
Figure 4.28. Keysight E5379A probe.
100-pin
connectors (5)
35 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Mictor and Samtec Probing (Continued)
E5380B 38-pin probe
The E5380B is designed to be compatible with the Mictor connector. If you have a target
system designed for connection to the E5346A high-density probe adapter, the E5380B
probe will connect directly to this same Mictor connector. (For information on the
E5346A, refer to pages 62 to 64). The maximum state speed when used with the E5380B
probe is 600 Mbits/second. The minimum input signal amplitude required by the E5380B
is 300 mV.
The E5380B probe combines two 17-channel cables into a single-ended 38-pin Mictor
connector.
Refer to Table 4 for connector, shroud, and kit part numbers.
Table 4. Mating connectors, shrouds, and kits for Keysight E5378A,
E5379A, and E5380B probes
For probe model
numbers
E5378A, E5379A
38-pin probe
Probing connector Kit
Shrouds (5)
38-pin connectors (5)
See Table 4 for part numbers
Figure 4.29. Keysight E5380B probe.
E5380B
Description
Kit of 5 support shrouds and 5 100-pin Samtec connectors
for PC board thickness up to 1.57 mm (0.062”)
Kit of 5 support shrouds and 5 100-pin Samtec connectors
for PC board thickness up to 3.05 mm (0.120”)
One 100-pin Samtec connector (also available from Samtec
as part number ASP-65067-01)
One support shroud for PC board thickness up to 1.57 mm
(0.062”)
One support shroud for PC board thickness up to 3.05 mm
(0.120”)
Kit of 5 support shrouds and 5 38-pin Mictor connectors for
PC board thickness up to 1.57 mm (0.062”)
Kit of 5 support shrouds and 5 38-pin Mictor connectors for
PC board thickness up to 3.175 mm (0.125”)
One 38-pin Mictor connector (also available from AMP as
part number 2-767004-2)
One support shroud for PC board thickness up to 1.57 mm
(0.062”)
One support shroud for PC board thickness up to 3.175 mm
(0.125”)
One support shroud for PC board thickness up to 4.318 mm
(0.700”)
Keysight part
number
16760-68702
16760-68703
1253-3620
16760-02302
16760-02303
E5346-68701
E5346-68700
1252-7431
E5346-44701
E5346-44704
E5346-44703
For further information on designing the E5378A, E5379A, or E5380B probe connectors into your system, refer to the following
documents:
Keysight Logic Analyzer Probes
(E5378A, E5379A, E5380B, and
E5386A) User’s Guide
Designing High-Speed Digital
Systems for Logic Analyzer Probing
Mechanical drawings, electrical models,
general information on probes for logic
analyzers with 90-pin connectors
Design recommendations, examples, and
analysis for layout of target systems
16760-97016
http://literature.cdn.keysight.com/litweb/pdf/16760-97016.pdf
5988-2989EN
http://literature.cdn.keysight.com/litweb/pdf/5988-2989EN.pdf
36 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
Mictor and Samtec Probing (Continued)
Figure 4.30. Dimensions of the 100‑Pin
Samtec connector used in the 16760‑68702
and 16760-68703 connector kits.
Figure 4.31. E5378A 100-pin single-ended probe dimensions.
Equivalent load
Figure 4.33. E5378A and E5379A input
equivalent load, including 100-pin connector.
Figure 4.32. E5379A 100-pin differential probe dimensions.
Equivalent load
Figure 4.35. E5380B input equivalent load,
including 38-pin connector.
Figure 4.34. E5380B 38-Pin probe dimensions.
37 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 90-pin Logic Analyzers
High-Speed Timing Probing
E5386A half-channel adapter
When the Keysight high-speed timing
analyzers are operating at their maximum
speed, only the even numbered channels
are used. To reduce the number of probes
and connectors required, the E5386A
adapter maps the even channels to all
of the pins of an E5378A and E5379A
Samtec probes, E5387A and E5390A Soft
Touch Connectorless probes, and Soft
Touch Pro Series connectorless probes
E5404A, E5405B, and E5406A. The
following diagrams show how the E5386A
is connected.
Figure 4.36. E5386A half-channel probe adapter.
E5386A (2)
E5378A or E5390A
Figure 4.37. E5386A with E5378A, E5390A, or E5406A single-ended probe.
E5386A (1)
E5379A or E5387A
Figure 4.38. E5386A with E5379A, or E5405B differential probe.
For further information on the application of the E5386A Half-channel adaptor refer to Keysight E5400-Pro Series Soft Touch
Connectorless Probes User’s Guide, publication number E5404-97006.pdf
38 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
U4200A Series Probe/Cable Solutions for 160-pin Front Panel Connector Logic
Analyzers
U4201A logic analyzer cable
Figure 5.1. U4201A logic analyzer cable.
Figure 5.2. U4201A dimensions.
39 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
U4200A Series Probe/Cable Solutions for 160-pin Front Panel Connector Logic
Analyzers (Continued)
Figure 5.3.
40 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
U4206A Probe, 34 Channel, Soft Touch Pro, Single-Ended, to Four 160-pin Direct
Connect to Logic Analyzer Front Panel Connectors
The U4206A is a direct connect probe/cable with a standard soft touch pro connector at
one end that routes to four 160-pin connectors that plug into the front panel connectors
of a U4164A logic analyzer module. The U4206A is designed to be used with either
the quad state mode or ¼ channel 10 GHz timing mode of the U4164A logic analyzer
module. For use in quad state mode only, the U4206A includes two flying leads to
connect additional clock qualifier signals into the clock inputs on Pods 3 and 7. Please
refer to the U4164A installation guide for specific details on the operation of the U4164A
quad sample state or ¼ channel 10 GHz timing modes of operation.
Figure 6.2. LPDDR4 example foot print mapping using U4206A Soft Touch Pro
probe/cable into U4164A.
Figure 6.1. Soft touch pro foot print mapping to U4164A pod/
channel inputs using U4206A probe/cable.
41 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
U4206A Probe, 34 Channel, Soft Touch Pro, Single-Ended, to Four 160-pin Direct
Connect to Logic Analyzer Front Panel Connectors (Continued)
U4206A probe cable
34 channel, soft touch pro, single-ended,
quad x 160-pin direct connect
Quick start and accessory guide
Socket adapter
Kit of 34 pieces
E5381-82102
3-pin header
Soft touch pro
retention module
Tip resistor
82 ohm coaxial
Kit of 34 pieces
E5381-82104
Kit of 34 pieces
E5381-82101
82 ohm resistor
template
Kit of 5 pieces
E5405-68702
1 piece
01131-94309
U4206A
KEYSIGHT
U4206A
POD 3
QUAD SAMPLE
SOFT TOUCH PRO
KEYSIGHT
U4206A
POD 5
QUAD SAMPLE
SOFT TOUCH PRO
KEYSIGHT
CONNECT PODS TO LOGIC
ANALYZER
U4206A
connector pod - to - LA connector
POD 7
U4206A
1
Pod 1
Pods 1/2
Pod 3
Pods 3/4
Pod 5
Pods 5/6
Pod 7
Pods 7/8
2
APPLY SOFT TOUCH PRO RETENTION
MODULE TO SYSTEM UNDER TEST
Insert
3
CONNECT PROBE CABLE TO SOFT
TOUCH PRO RETENTION MODULE
Solder pins from
top of board
Soft touch pro
probe cable
Retentio
module
QUAD SAMPLE
SOFT TOUCH PRO
KEYSIGHT
QUAD SAMPLE
SOFT TOUCH PRO
POD 1
Figure 6.3. U4206A probe cable accessories.
CLOCK QUALIFIER CONNECTIONS ARE MADE USING THE INCLUDED ACCESSORIES
Coaxial tip resistor 82 Ohm
3-pin header
Socket adapter
Total lumped input C 1.0 pF
Total lumped input C 1.1 pF
Solder attach To:
. Components
. Traces
. Pads
. VIAs
Total lumped input C 0.9 pF
Figure 6.4. U4206A connections and probe cable details.
Soft touch pro
connector
U4206A
POD 1
KEYSIGHT
QUAD SAMPLE
SOFT TOUCH PRO
QUAD SAMPLE
SOFT TOUCH PRO
U4206A
KEYSIGHT
U4206A
POD 7
QUAD SAMPLE
SOFT TOUCH PRO
KEYSIGHT
POD 5
KEYSIGHT
TO COVER PINS
WHEN NOT
CONNECTED
SAVE
PIN PROTECTOR
POD 3
U4206A
KEYSIGHT
Pin Protector
PROBE CABLE ASSEMBLY
QUAD SAMPLE
SOFT TOUCH PRO
Logic analyzer
connection pods
Clock qualifier connections
Figure 6.5. U4206A probe cable.
Extra E5390-25201 Pin
Protectors are included
DO NOT DISCARD THIS
PIN PROTECTOR
To protect the Soft
Touch Pro pins from
being damaged, use the
Pin Protector when
probe is not connected.
42 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
U4206A Probe, 34 Channel, Soft Touch Pro, Single-Ended, to Four 160-pin Direct
Connect to Logic Analyzer Front Panel Connectors (Continued)
Figure 6.6. U4206A dimensions.
The U4206A ships with:
–– Carrying case (qty 1)
–– Socket adapters, one kit of qty 34, part number E5381-82102
–– 3-pin headers, one kit of qty 34, part number E5381-82104
–– Tip resistors 82 Ω coaxial, one kit of qty 34, part number E5381-82101
–– Soft touch pro retention module, one kit of qty 5, part number E5405-68702
–– 82 Ω resistor template (qty 1), part number 01131-94309
–– Pin protector, one covering the soft touch pro connector on the U4206A and one
spare, part number E5390-25201
43 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
U4207A Probe, Zero Ω, 34 Channel, Soft Touch Pro, Single-Ended, to Four 160-pin
Direct Connect to Logic Analyzer Front Panel Connectors
The U4207A is only for use with Keysight RC (resistor/capacitor) BGA interposers, such
as the W6602A. Please refer to the U4200A Series user guide for the specific Keysight
RC BGA interposer for specific information regarding connecting the U4207A.
The Keysight W6602A+U4207A passively monitors the LPDDR4 200 ball DRAM package.
After tuning the Keysight analyzer, Command/Address bits can be reliably captured up
to 3200 MT/s. At some data rates, the analyzer may not be able to provide an error-free
capture of all DQ data bits.
Physical dimensions of the U4207A are identical to the U4206A. Electrically, the probes
are very different. The U4206A contains the RC tip network for the U4164A internally.
The U4207A is zero Ω internally and is designed only to be used with Keysight BGA
interposers with the tip RC network for the U4164A designed onto the BGA interposer.
CAUTION: Connecting the U4207A to a footprint without the RC tip network can damage
the U4164A module.
The U4206A is designed to be used with either the quad state mode or ¼ channel
10 GHz timing mode of the U4164A logic analyzer module. For use in quad state mode
only, the U4207A includes two flying leads to connect additional clock qualifier signals
into the clock inputs on Pods 3 and 7 of the clocking module.
Please refer to the U4164A installation guide for specific details on the operation of the
U4164A quad sample state or ¼ channel 10 GHz timing modes of operation.
The U4207A ships with:
–– Carrying case (qty 1)
–– Soft touch pro retention module, one kit of qty 5, part number E5405-68702
–– Pin protector, one covering the soft touch pro connector on the U4206A and one
spare, part number E5390-25201
U4200 Series Direct Connect Cables for use with 16850 Series Portable Logic
Analyzers
The following U4200 Series direct connect cables are covered in the 16850 Series
Portable Logic Analyzers - Data Sheet, publication number 5991-2791EN
–– U4203A: Direct connect – flying lead (for more information, view the User Guide:
http://literature.cdn.keysight.com/litweb/pdf/U4203-97000.pdf?id=2498183)
–– U4204A: Direct connect – single-ended soft touch pro series
–– U4205A: Direct connect – Mictor connector probe (for more information, view
the User Guide: http://literature.cdn.keysight.com/litweb/pdf/U4205-97000.
pdf?id=2500912)
44 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
General-Purpose Probing Flying Lead Probing Accessories
Wedge adapters
The Keysight Wedge technology provides
very reliable probing of a few channels
on 0.5 mm and 0.65 mm pitch QFPs. No
clear area is required around the device.
Each Wedge of the probe slides between
the legs of the QFP. The side of each
Wedge probe contacts the package legs.
An insulation core electrically isolates
the sides of each Wedge (see Figures 7.1
and 7.2). Various 3-signal, 8-signal, and
16-signal probes are available (see
Table 5).
Table 5. Wedge probe adapter
IC leg spacing
0.5 mm
0.5 mm
0.5 mm
0.65 mm
0.65 mm
0.65 mm
Number of signals
3
8
16
3
8
16
Number of wedges in pack
1
1
1
1
1
1
Model number
E2613A
E2614A
E2643A
E2615A
E2616A
E2644A
Figure 7.1. Three-signal Wedge electrical
connection
Top view of 16 signal pins
Bottom view of 16 ground pins (connected to common ground plane)
Ground connector pins
16
Gaps
Wedge connector pins
Removable jumper
1
Figure 7.2. Eight-signal and 16-signal Wedge (16-signal Wedge has a common ground plane).
Miscellaneous probing
accessories
The ferrite core assembly can be added to
the probe cable to suppress EMI and RFI
noise that can corrupt the measurement.
Figure 7.3. Ferrite core assembly, 16555-60001.
45 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
40-pin and 90-pin Logic Analyzers Probe Cables
Signal line loading
Any probed signal line must be able to supply a minimum of 600 mV (unless noted
otherwise — see probe of interest) to the probe tip while the probe is connected to the
system. The maximum input voltage of each probe is ± 40 volts peak (unless noted
otherwise — see probe of interest).
Probe cables
The probe cable (see Figure 10.1 and Table 10) contains 16 signal lines and two clk lines,
two +5 volt power lines, and ground lines for each of the signal/clock and power lines.
All of these lines are contained in a 4.5-foot cable. The probe cable is included with the
logic analyzer. The cable grounds are chassis (earth) grounds, not “floating” grounds.
The two +5 volt power lines can be used to power active probing systems. Consult the
specifications for the individual logic analyzers or logic analyzer cards for the maximum
allowable current through each +5 volt power supply.
Caution: These +5 volt power lines MUST NOT be connected to the target’s power
supply.
Caution: Be careful when using straight wire probe leads, one common ground, or
RC networks located far from the target. These circumstances increase the impact
of analog effects such as crosstalk and EMT susceptibility, which contribute to
measurement errors.
Figure 8.1. Typical logic analyzer probe cable.
46 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
40-pin and 90-pin Logic Analyzers Probe Cables (Continued)
Table 6. Logic analyzer cables
40-pin cable part number
Logic analyzer 01550-61607 16550-61601 01660-61605 16555-61606
U4164A
U4154A/B
16850 Series
16962A
16951B
16950A/B
16911A
16910A
16800 Series
16760A
16753/54/
55/56A
16752A/B
16751A/B
16750A/B
16740 Series
16719A
16718A
16717A
16716A
16715A
16712A
16711A
16710A
16557D
16556A/D
●
16555A/D
●
16554A
●
16550A
●
1690 Series
1680 Series
1670 Series
1660 Series
●
1650 Series
●
1.
90-pin cable part number
16710-61603 16715-61601 16760-61605 16962-61601 U4201A
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
You must purchase U4201A logic analyzer cables and 90-pin probes and/or purchase direct-connect probes for these logic analyzers.
47 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
General-Purpose Probing
E5383A 17-channel single‑ended flying lead probe
Ideal when only a few lines may need to be probed or probe points are distributed across
a target. The E5383A includes a set of 20 IC test clips and five ground leads.
Logic analysis general-purpose probes
General-purpose probing requires connecting probe leads to individual signal lines. This
method is most convenient for a small to moderate number of signals, is very flexible,
and can be used in conjunction with other probing methods.
Note: Any probed signal line must be able to supply a minimum of 600 mV to the probe
with the specified loading.
The standard probing system
The standard probing system consists of IC clips, probe leads, probe housing and
probe cable. Because it is passive, the standard probing system is smaller, lighter, and
much easier to use than active probing systems. This passive probing system is similar
to a probing system used on a high frequency oscilloscope. It consists of an isolation
network (as shown in Figure 9.1) at the probe tip and a shielded resistive transmission
line. The advantages of this system are:
–– High input impedance. See Figure 9.1.
–– Signal ground at the probe tip for high-speed signals.
–– Inexpensive, removable probe tip assemblies.
Tip isolation network
Figure 9.1. Probe tip Isolation network and equivalent load.
Equivalent load
48 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
General-Purpose Probing (Continued)
Probe leads and lead sets
Probe leads are configured into lead sets, which can probe 16 data channels with
ground, one clock channel, and a common ground. A 17-channel probe lead set
(E5383A) is shown in Figure 9.2, along with the replacement part numbers for individual
components in Figure 9.3.
Each probe lead is a 12-inch, twisted-pair cable connected to the probe cable at the
probe housing (see Figure 9.3). The probe tip includes a signal lead, a connector for a
ground lead, and the isolation network.
The signal and ground leads can be connected directly to the target system. This
requires installing 0.63 mm (0.025 inch) square pins, or round pins with a diameter of
between 0.66 mm (0.026 inch) and 0.84 mm (0.033 inch) directly on the board. An IC
test clip can also be used. The same specifications apply for the pin dimensions of the
test clip. (See Figure 9.6 for IC test clips available from commercial sources.)
Figure 9.2. E5383A 17-channel probe lead set.
Probe lead
(Keysight part number 5959-9333
contains 5 probe leads)
Each probe lead set contains:
1 clock probe lead 16 data line leads
Common ground lead
(long) (Keysight part
number 5959-9335
contains 5 pod
grounds)
Connector for
ground lead
Ground leads
(Keysight part number 5959-9334
contains 5 short ground leads)
Probe housing
RC network housing
Signal leads
Figure 9.3. E5383A 17-channel probe lead set replacement parts.
SMD IC clip
(Keysight part number 5090-4833
contains 20 clips)
49 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
General-Purpose Probing (Continued)
IC clips
The surface-mount device IC clip with
twin hooks (part number 5090-4833,
containing 20 IC clips) is designed for fine
surface-mounted component leads. The
twin hook 0.5 mm IC clip (part number
10467-68701, containing four 0.5 mm
IC clips), is very useful for 0.5 mm pitch
components. See Figure 9.5.
Probe ground leads
RC network housing
Grounding
There are three methods of grounding
the probe system. First, the entire probe
lead set can be grounded through the
common ground. This requires only one
connection, but is not recommended
because it will cause poor signal fidelity
in systems with fast transition times. The
recommended method is to individually
ground each probe lead. This yields
optimal signal fidelity and is required for
signals with faster transition times
(< 4 to 5 ns).
For moderate rise times (greater than
2 ns), it may be acceptable to ground
every other (or every fourth) ground
connection to the target.
SMT IC clip
Signal leads
Figure 9.4. Connecting IC clips and ground leads to probes.
5090-4833
10467-68701
Figure 9.5. SMD IC clip and 0.5 mm IC clip.
Figure 9.6. Typical IC test clips available from commercial test clip vendors.
50 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Designing for Logic Analysis Probing
Keysight recommends that targets with probing constraints have connectors designed
into the prototype versions of the product for effective hardware and software debug.
The following should be considered when designing with connectors:
–– Select the appropriate connector technology for your target speed and target
density.
–– Carefully select all lines for routing to the connectors that may be needed for
debug.
–– Group the lines at each connector for your probing convenience. For example,
Keysight may have written an inverse assembler for your device that has a
preconfigured signal order. Before designing, refer to the documentation for this
inverse assembler for essential signal lines and order.
–– Keep the routing to connectors as short as possible to minimize target impact and
provide accurate data.
–– Examine the impact of probing isolation networks designed into the target versus
the isolation network products offered by Keysight.
An isolation network must be located between the target and the logic analyzer. It can
be located on the target board in through-hole or SMT parts. It can also be attached to
the logic analyzer cable with the probe leads (the isolation network is molded into the
end of the probe); or the Keysight 01650-63203 isolation adapter with self contained
isolation networks can be used. Probe leads can be used with connectors but are not
the most convenient method. Direct connection of the connectors with the analyzer
cable (isolation network parts on the target) or with a probe or isolation adapter is the
faster, more convenient method.
51 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Soft Touch Connectorless Probing
High-density, high-performance probes
Keysight Pro Series soft touch connectorless logic analyzer probes
Keysight has developed connectorless logic analyzer probes based on soft touch
probing technology. Connectorless logic analyzer probing removes the connector that
is traditionally attached to the target board and replaces it with an array of probe pads.
This reduces the probe load on the target by eliminating the loading associated with
the physical body of the connector. Additionally, this streamlines the design flow by
eliminating the need to assign a logic analyzer connector to the bill of material of your
board, procuring those connectors and then having them loaded onto your board.
Keysight’s soft touch connectorless probes use micro spring-pin technology to provide
reliable contact which is not dependent on the planarity of the PC board or the plating
processes used to fabricate the board. No special cleaning processes are required when
using Keysight’s soft touch probes.
The new Keysight Pro Series soft touch connectorless probes offer a 30% smaller
footprint than the original soft touch probes and are the basis for the industry standard
connectorless probing footprint.
The probes use a retention module that ensures soft touch pin-to-PC board pad
alignment and holds the probe in place while in use. The Pro Series soft touch uses a
“top-side” mountable retention module. The retention module is mounted on the same
side of the board as the probing footprint so there is no need to access the back-side
of the board. Because there is no requirement for the retention module pins to extend
beyond the back-side of the board, the retention module is compatible with virtually any
board thickness.
E5404A Pro Series soft touch
connectorless probe
The E5404A is a 34-channel single-ended
Pro Series soft touch connectorless
probe compatible with all Keysight
logic analyzers that have a 40-pin pod
connector. It is capable of acquiring
data at the maximum rates of the logic
analyzer it is connected to.
Features
–– No connector on the target board
–– Top-side mount retention module
–– Industry-standard connectorless
footprint
–– 34 channels, single-ended clock and
data
–– Extremely low, < 0.7 pF, equivalent
load capacitance
–– Capable of data rates > 2.5 Gb/s
(maximum rate dependent on
analyzer used)
–– 500 mV p-p minimum signal
amplitude
–– Robust and reliable soft touch
technology
Unused clock inputs can be used as data
inputs.
Insert
Figure 9.7. “Top-side” mountable retention module.
Solder pins from
top of board
The E5404A (used with logic analyzers
with a 40-pin cable connector) uses the
same footprint, pinout, and retention
module as the E5406A Pro Series soft
touch connectorless probe (used with
logic analyzers with a 90-pin cable
connector).
A kit of five retention modules is shipped
with each Pro Series soft touch probe.
Additional kits can be ordered using
Keysight part number E5403A.
52 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
E5394A soft touch connectorless probe
The E5394A is a 34-channel single-ended soft touch connectorless probe compatible
with all Keysight logic analyzers that have a 40-pin pod connector. It is capable of
acquiring data at the maximum rates of the logic analyzer it is connected to. The probe
has the following inputs:
–– 32 single-ended data inputs
–– Two single-ended clock inputs
–– < 0.7 pf input capacitance
–– 500 mV p-p minimum signal amplitude
Unused clock inputs can be used as data inputs.
The E5394A (used with logic analyzers with a 40-pin pod connector) uses the same
footprint, pinout and retention module as the E5390A single-ended soft touch
connectorless probe (used with logic analyzers with a 90-pin pod connector).
A kit of five retention modules is shipped with each soft touch probe. Additional kits can
be ordered using Keysight part number E5387-68701.
Logic analyzer probe cables
(40-pin pod connector)
E5394A
single-ended soft touch probe
Retention
module
Pads and mounting holes
on target system
Figure 9.8. Keysight E5394A soft touch probe connection.
E5396A half-size soft touch
connectorless probe
The E5396A is a small space saving
probe compatible with all Keysight
logic analyzers that have a 40-pin cable
connector. It is a 17-channel, singleended probe capable of capturing data at
the maximum rates of the logic analyzer
it is connected to. The probe has the
following inputs:
–– 16 single-ended data inputs
–– One single-ended clock input
–– < 0.7 pf equivalent load capacitance
–– 500 mV p-p minimum signal
amplitude
The unused clock input can be used as a
data input.
The E5396A (used with logic analyzers
with a 40-pin cable connector) uses the
same footprint, pinout, and retention
module as the E5398A single-ended
soft touch connectorless probe (used
with logic analyzers with a 90-pin cable
connector).
53 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Probe dimensions
The following figures show dimensions,
footprint, and pinout information you will
need to design your target system board
for use with the Keysight Pro Series soft
touch probes.
Top view E5404A
Side view E5404A
Figure 9.9. E5404A probe dimensions.
Figure 9.10. Pro Series soft touch retention module dimensions.
Probe and retention module
dimensions
The following dimensions show the Pro
Series soft touch probe attached to the
retention module. The retention module is
mounted on the PC board.
Figure 9.11. Pro Series soft touch side-by-side dimensions.
54 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Top view E5394A
45.72 mm
________
E5394A
1.80 in.
160.79 mm
_________
6.330 in.
60.96 mm
________
E5394A
2.40 in.
15.26
21.08 mm
________
0.830 in.
8.76 mm
_______
0.345 in.
34.61 mm
________
1.363 in.
27.93 mm
________
1.100 in.
11.176
mm
________
0.440 in.
Side view E5394A
7.54 mm
_______
0.297 in.
5.31 mm
_______
0.209 in.
Top view E5396A
45.87 mm
________
1.806 in.
45.720 mm
_________
18.000 in.
21.11 mm
________
8.76 mm 0.831 in.
_______
0.345 in.
21.61
mm
_______
0.851 in.
64.48 mm
________
2.538 in.
22.05 mm
________
0.868 in.
15.93 mm
________
0.627 in.
6.63 mm
________
0.261 in.
Side view E5396A
7.54 mm
_______
0.297 in.
5.31 mm
_______
0.209 in.
Figure 9.12. E5394A and E5396A soft touch probe dimensions.
55 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Retention module dimensions
The soft touch probes are attached to
the PC board using a retention module
which ensures pin-to-pad alignment
and holds the probe in place. A board
thickness of up to 2.54 mm (0.100 inch)
is recommended. Insert the retention
module into the board, noting the keying
pin, and solder the four alignment pins to
the backside of the board.
34-channel retention module dimensions
4.83 mm
_______
0.190 in.
6.99 mm
_______
0.275 in.
3.58 mm
_______
0.141 in.
2.72 mm
_______
0.107 in.
0.64 mm
_______
0.025 in.
4.98 mm
_______
0.196 in.
34.04 mm
________
1.340 in.
29.97
mm
________
1.180 in.
17-channel retention module dimensions
4.83 mm
_______
0.190 in.
6.99 mm
_______
0.275 in.
17.98
mm
_______
0.708 in.
3.58 mm
_______
0.141 in.
22.05
mm
_______
0.868 in.
4.98 mm
_______
0.196 in.
2.72 mm
_______
0.107 in.
0.64 mm
________
0.025 in.
Figure 9.13. Retention module dimensions.
Probe and retention module
dimensions
The following dimensions show the soft
touch probe attached to the retention
module. The retention module is mounted
on the PC board.
34-channel probe and retention module dimensions
25.35 mm
________
0.998 in.
2.54 mm
_______
0.100 in.
35.05 mm
________
1.380 in.
Minimum
recommended
8.13 mm
_______
0.320 in.
Minimum
recommended
17-channel probe and retention module dimensions
29.61 mm
________
1.166 in.
8.13 mm
_______
0.320 in.
Minimum
recommended
Figure 9.14. Side-by-side dimensions.
2.54 mm
_______
0.100 in.
23.06 mm
________
0.908 in.
Minimum
recommended
56 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Drawing notes:
1
2
Maintain a solder mask web
between pads when traces are
routed between the pads on the
same layer. The solder mask may
not encroach onto the pads within
the pad dimension shown.
VIAs not allowed on these pads.
VIA edges may be tangent to pad
edges as long as a solder mask
web between VIAs and pads is
maintained.
VIA
Pad
3
4
5
6
Surface finishes on pads should be
HASL immersion silver, or gold over
nickel.
This footprint is compatible with
retention module Keysight part
number E5405-68702.
This through hole is not used with
the Keysight retention module.
Plated through hole should not be
tied to ground plane for thermal
relief.
Figure 9.15. Pro Series soft touch footprint dimensions (see drawing notes).
D0
D1
GND
D4
D5
GND
CK 1+
GND/NC
GND
D10
D11
GND
D14
D15
GND
D2
D3
GND
D6
Logic
D7
analyzer
GND
even pod
D8
D9
GND
D12
D13
GND
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
GND
D2
D3
GND
D6
D7
GND
D8
D9
GND
D12
D13
GND
D0
D1
GND
D4
D5
GND
GND/NC
CK 2+
GND
D10
D11
GND
D14
D15
Logic
analyzer
odd pod
Figure 9.16. Pad numbers for E5404/06A 34-channel single-ended probes.
57 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
E5404/06A 34-channel
single-ended probe
Signal name
Pad #
D0
A1
D1
A2
Ground
A3
D4
A4
D5
A5
Ground
A6
Clock 1+
A7
GND/NC/Clock 1–
A8
Ground
A9
D10
A10
D11
A11
Ground
A12
D14
A13
D15
A14
Ground
A15
D2
A16
D3
A17
Ground
A18
D6
A19
D7
A20
Ground
A21
D8
A22
D9
A23
Ground
A24
D12
A25
D13
A26
Ground
A27
Logic analyzer
→
→
Channel
0
1
→
→
4
5
→
Clock
→
→
10
11
→
→
14
15
→
→
2
3
→
→
6
7
→
→
8
9
→
→
12
13
Pod
Whichever pod is
connected to “Odd”
on the E5404/06A
probe
Whichever pod is
connected to “Even”
on the E5404/06A
probe
E5404/06A 34-channel
single-ended probe
Signal name
Pad #
Ground
B1
D2
B2
D3
B3
Ground
B4
D6
B5
D7
B6
Ground
B7
D8
B8
D9
B9
Ground
B10
D12
B11
D13
B12
Ground
B13
D0
B14
D1
B15
Ground
B16
D4
B17
D5
B18
Ground
B19
GND/NC/Clock 2–
B20
Clock 2+
B21
Ground
B22
D10
B23
D11
B24
Ground
B25
D14
B26
D15
B27
Logic analyzer
Channel
→
→
2
3
→
→
6
7
→
→
8
9
→
→
12
13
→
→
0
1
→
→
4
5
→
Clock
→
→
10
11
→
→
14
15
Pod
Whichever pod is
connected to “Odd” on
the E5404/06A probe
Whichever pod is
connected to “Even” on
the E5404/06A probe
58 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Probe footprint dimensions
Use these probe footprint dimensions for the PC board pads and holes for attaching the
retention module.
Soft touch
Half-size soft touch
Figure 9.17. Footprint dimensions.
59 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Pinout for the E5394A
single-ended soft touch probe
The following graphic and table show the
E5394A single-ended soft touch probe
pad numbers and logic analyzer pod
inputs.
POD 1
B1
POD 2
B27
D0 D2 G D4 D6 G D8 D10 G D12 D14 G CLK G D0 D2 G D4 D6 G D8 D10 G D12 D14 G CLK
A1
A27
D1 D3 G D5 D7 G D9 D11 G D13 D15 G NC G D1 D3 G D5 D7 G D9 D11 G D13 D15 G NC
POD 1
POD 2
Figure 9.18. Pinout.
E5394A single-ended probe
Signal name
Pad #
D1
A1
D3
A2
Ground
A3
D5
A4
D7
A5
Ground
A6
D9
A7
D11
A8
Ground
A9
D13
A10
D15
A11
Ground
A12
NC
A13
Ground
A14
D1
A15
D3
A16
Ground
A17
D5
A18
D7
A19
Ground
A20
D9
A21
D11
A22
Ground
A23
D13
A24
D15
A25
Ground
A26
NC
A27
→
→
Logic analyzer
Channel
Pod
1
Whichever pod is
connected to “Odd” on
3
the E5394A probe
5
7
→
→
9
11
→
→
13
15
→
NC
→
→
→
→
1
3
→
→
5
7
→
→
9
11
→
→
13
15
→
NC
Whichever pod is
connected to “Even”
on the E5394A probe
E5394A single-ended probe
Signal name
D0
D2
Ground
D4
D6
Ground
D8
D10
Ground
D12
D14
Ground
Clock
Ground
D0
D2
Ground
D4
D6
Ground
D8
D10
Ground
D12
D14
Ground
Clock
Pad #
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
Logic analyzer
→
→
Channel
0
2
→
→
4
6
→
→
8
10
→
→
12
14
→
Clock
→
→
0
2
→
→
4
6
→
→
8
10
→
→
12
14
→
Clock
Pod
Whichever pod is
connected to “Odd” on
the E5394A probe
Whichever pod is
connected to “Even”
on the E5394A probe
60 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Pinout for the E5396A
17-channel single-ended soft
touch probe
The following graphic and table show the
E5396A single-ended soft touch probe
pad numbers and logic analyzer pod
inputs.
B1
B13
D0
D2
G
D4
D6
G
D8
D10
G
D12
D14
G
CLK
A1
A13
D1
D3
G
D5
D7
G
D9
D11
G
D13
D15
G
NC
Figure 9.19. Pinout.
E5396A 17-channel
single-ended probe
Signal name
D1
D3
Ground
D5
D7
Ground
D9
D11
Ground
D13
D15
Ground
NC
Pad #
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
→
→
Logic analyzer
Channel
Pod
1
Whichever pod is
plugged into the
3
E5396A probe
5
7
→
→
9
11
→
→
13
15
→
n/a
→
→
E5396A 17-channel
single-ended probe
Signal name
D0
D2
Ground
D4
D6
Ground
D8
D10
Ground
D12
D14
Ground
Clock
Pad #
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
→
→
Logic analyzer
Channel
Pod
0
Whichever pod is
plugged into the
2
E5396A probe
4
6
→
→
8
10
→
→
12
14
→
Clock
→
→
61 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Soft Touch Connectorless Probing (Continued)
Equivalent probe loads
The following probe load models are based on in-circuit measurements made with a
Keysight 8753E 6 GHz network analyzer and a Keysight 54750A TDR/TDT using a 50 Ω
test fixture. The following schematic accurately models the probe load out to 6 GHz.
Din
Rtap
Din
Rtap
400
Cstub
0.375 pF
Cstub
0.375 pF
Ctip
400
10 pF
Rtip
100 K
Ctip
10 pF
Rtip
100 K
Figure 9.20. Simple (does not include capacitive coupling between channels or inductance of the
spring pins).
Din
Lspring2
Ccoupling
0.070 pF
1.17 nH
Lspring1
Lspring2
Rtip1
0.63 nH
1.17 nH
250
Rtip1
Ctip
10 pF
Cstub
0.375 pF
Rgnd1
250
10
Rtip2
100 K
Ctip
10 pF
pF
Figure 9.21. Complex (includes capacitive coupling between channels and inductance of spring
Rtip2
Rgnd2
pins).
100 K
120
Rgnd2
120
62 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Mictor and Samtec Probing
High-Density, High-Performance
Keysight has developed high-density probing solutions based on the 100‑pin Samtec
and AMP Mictor 38-pin connectors. The Keysight probes and adapter cables, E5346A,
E5339A, E5351A, and E5385A, provide a connection strategy to route your important
signals to the Keysight logic analyzer. Simply design the connectors onto the board for
the critical signals such as address, data, and status bits. The connectors consume a
minimal amount of board space. Each connector provides 32 channels of logic analysis
per connector and two clocks (unused clocks can be used as data). Connectors for use
with the E5385A, E5346A, E5339A, and E5351A can be purchased directly from AMP,
Samtec, or Keysight. See the “Related Information” at the end of this document.
Figure 9.22. E5385A Samtec 100-pin probe mechanical dimensions.
0.450 in
11.44 mm
0.209 in
5.31 mm
17.500 in
444.50 mm
0.465 in
11.80 mm
0.271 in
6.89 mm
1.64 in
41.6 mm
1.400 in
35.56 mm
2.393 in
60.77 mm
Figure 9.23. E5346A, E5351A, E5339A Mictor probes mechanical dimensions.
1.100 in
27.94 mm
63 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Mictor and Samtec Probing (Continued)
Keysight Technologies E5346A, E5339A, and E5385A probes
The E5346A, E5339A, and E5385A probes include the required isolation networks for
the logic analyzer right at the probe tip, close to the target. The E5346A and E5385A are
designed to acquire signals with peak-to-peak amplitude as low as 500 mV. The E5339A
is designed to acquire signals as small as 250 mV peak-to-peak. Figure 9.24 shows
the equivalent load for the E5339A, and Figure 9.25 shows the equivalent load for the
E5346A. Figure 9.26 shows the equivalent load for the E5385A.
To use the E5346A, E5339A, or E5385A at high clock speeds, the following design
guidelines should be observed:
–– Calculate the electrical length of the probe hookup stub.
–– For PC board material with Er=4.9, use a propagation delay of 160 ps/inch.
–– Check that the propagation delay of the probe hookup stub is less than 20% of the
bus signal rise time (Tr). If it is, the E5346A, E5339A, or E5385A can be used for
connection.
For example, if Er=4.9, a 2.5 inch probe hookup stub generates a propagation delay of
400 ps. If Tr is > 2 ns, the E5346A, E5339A, or E5385A is a viable probing choice.
The E5346A and E5339A use the AMP Mictor 38-pin connector. The E5385A uses a
100-pin connector manufactured by Samtec. Keysight recommends the E5394A or
E5385A for new applications, due to the reduced input capacitive loading and improved
isolation between adjacent channels.
Equivalent load
Equivalent load
Equivalent load
1.5
Figure 9.24. E5339A Low Voltage Mictor probe
input equivalent load.
Figure 9.25. E5346A Mictor probe input
equivalent load.
Figure 9.26. E5385A Samtec probe input
equivalent load
For additional information on designing connectors into a target system, refer to the following documents:
Keysight E5346A/E5351A Probe/Adapter Installation note E5346-92016 http://literature.cdn.keysight.com/litweb/pdf/E5346-92016.pdf
Cable
Keysight E5339A Low Voltage Probe
Installation note E5339-92002 http://literature.cdn.keysight.com/litweb/pdf/E5339-92002.pdf
Keysight E5385A Probe
Installation note E5385-92001 http://literature.cdn.keysight.com/litweb/pdf/E5385-92001.pdf
k
64 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Mictor and Samtec Probing (Continued)
Logic analyzer pod
38-pin probe
(Keysight E5339A, E5346A, E5351A)
Optional shroud (recommended).
See Table 7 on page 68
Amp “Mictor 38” connector (AMP 2-767004-2),
Keysight part number 1252-7431
Figure 9.27. Keysight E5339A, E5346A, and E5351A connection and pinout.
Adapter Cable RC Network
k
Equivalent Load
Connector
E5339A,
E5346A,
or E5385A
probe
Figure 9.28. Keysight E5339A, E5346A, and E5385A design rules.
65 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Mictor and Samtec Probing (Continued)
Probe cables from
logic analyzer
E5385A 100-pin probe pin
assignments
Odd # probes
E5385A 100-pin probe
Even # probes
Shroud
See Table 7 on page 68 for part number
100-pin connector
Keysight part number 1253-3620
Samtec part number ASP-65067-01
Figure 9.29. Keysight E5385A connection and pinout.
Signal
Ground
Do Not
Connect
Ground
Odd D0
Ground
Odd D1
Ground
Odd D2
Ground
Odd D3
Ground
Odd D4
Ground
Odd D5
Ground
Odd D6
Ground
Odd D7
Ground
Odd D8
Ground
Odd D9
Ground
Odd D10
Ground
Odd D11
Ground
Odd D12
Ground
Odd D13
Ground
Odd D14
Ground
Odd D15
Ground
NC
Ground
NC
Ground
Odd D16P/
Odd CLK
Ground
NC
Ground
NC
Ground
NC
Ground
Ground
+5V
+5V
Pin number
1
2
3
4
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
61
63
65
67
69
71
73
75
77
79
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
81
83
85
87
89
91
93
95
97
99
82
84
86
88
90
92
94
96
98
100
Signal
Ground
Do Not
Connect
Ground
Even D0
Ground
Even D1
Ground
Even D2
Ground
Even D3
Ground
Even D4
Ground
Even D5
Ground
Even D6
Ground
Even D7
Ground
Even D8
Ground
Even D9
Ground
Even D10
Ground
Even D11
Ground
Even D12
Ground
Even D13
Ground
Even D14
Ground
Even D15
Ground
NC
Ground
NC
Ground
Even D16P/
Even CLK
Ground
NC
Ground
NC
Ground
NC
Ground
Ground
+5V
+5V
66 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Mictor and Samtec Probing (Continued)
Keysight E5351A 38-pin adapter cable
If the calculated electrical length of the required routing stub prohibits the use of the
Keysight E5339A, E5346A, or E5385A, the Keysight E5351A can be used with the
required isolation networks installed on the target.
The E5351A does not have its own internal isolation networks. When using the E5351A,
place the SIP isolation networks or equivalent discrete components very near the
target component for measurement. Ensure that the stub length between the target
component and the isolation network is short. The stub propagation delay should be
less than 20% of the bus signal rise time, as mentioned before. The transmission line
from the on-board isolation network to the Mictor connector should be designed for an
impedance in the range of 80 to 100 ohms (closer to 100 ohms is better). This length
should not exceed 3 to 4 inches, and all signal line lengths should be equal. Signal line
length variation should not cause propagation delay variation to exceed 20 ps between
signal lines.
Notes on using discrete components
Discrete components can be used in the design of the RC network. Keysight
recommends the circuit shown in Figure 9.31. To achieve the equivalent load shown in
the figure, trace lengths should be minimized by locating the RC network very near the
measured node. Actual load will be the stub length load added to the equivalent load in
the figure.
E5351A Probe
pF
k
Figure 9.30. Keysight E5351A design rules.
67 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Mictor and Samtec Probing (Continued)
Options for on-board
terminations for the E5351A
There are two options for isolating the
E5351A on the target PC board:
–– Use the surface mount isolation
network, Keysight part number
5062-7396. Refer to Figure 9.32 for
schematic and pinout.
–– Use discrete components. Refer
to Figure 9.31 for recommended
components and equivalent load.
If you are operating at state speeds
above 200 MHz, you should use discrete
components for best results. Due to the
added electrical length of the E5351A
probe cable, the divider compensating
capacitors in the SIP, and surface-mount
isolation networks are not optimum for
the E5351A, but they are usable up to
200 MHz clock rates.
Suggested on the board RC network
Equivalent load
k
9 pF
10 pF
Figure 9.31. Suggested on-board isolation network and equivalent load when using discrete
components to terminate the E5351A.
1.
The effective input capacitance for on-board isolation networks is purely a function of geometry 0.3 pF is about as low as can be achieved.
2. The equivalent load is the same when using the surface-mount isolation network, 5062-7396.
68 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Mictor and Samtec Probing (Continued)
Support shrouds
A support shroud is recommended to
provide additional strain relief between
the probe and the connector, as shown
in Figures 9.27 and 9.29. Two plated
through-holes are required on the target
board. The shroud is mounted directly
to the target board using the throughholes. This places the shroud around the
connector, providing solid mechanical
strain relief. Connector kits are available;
Table 1 shows the Keysight part numbers
for shrouds and connector kits for various
PC board thicknesses.
Table 7. Mating connectors, shrouds, and kits for Keysight E5339A,
E5346A, E5351A, and E5385A probes
For probe model
numbers
E5339A,
E5346A, E5351A
E5385A
Description
Kit of five support shrouds and five 38-pin Mictor connectors
for PC board thickness up to 1.57 mm (0.062”)
Kit of five support shrouds and five 38-pin Mictor connectors
for PC board thickness up to 3.175 mm (0.125”)
One 38-pin Mictor connector (also available from AMP as part
number 2-767004-2)
One support shroud for PC board thickness up to 1.57 mm
(0.062”)
One support shroud for PC board thickness up to 3.175 mm
(0.125”)
One support shroud for PC board thickness up to 4.318 mm
(0.700”)
Kit of five support shrouds and five 100-pin Samtec
connectors for PC board thickness up to 1.57 mm (0.062”)
Kit of five support shrouds and five 100-pin Samtec
connectors for PC board thickness up to 3.05 mm (0.120”)
One 100-pin Samtec connector (also available from Samtec as
part number ASP-65067-01)
One support shroud for PC board thickness up to 1.57 mm
(0.062”)
One support shroud for PC board thickness up to 3.05 mm
(0.120”)
0.64
0.025
Figure 9.33. Mechanical information for E5346-44701, E5346-44703, E5346-44704 support shrouds for 38-pin Mictor connectors.
Keysight part
number
E5346-68701
E5346-68700
1252-7431
E5346-44701
E5346-44704
E5346-44703
16760-68702
16760-68703
1253-3620
16760-02302
16760-02303
69 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Mictor and Samtec Probing (Continued)
Right-angle Mictor adapter
For systems with space constraints above
the 38-pin connector, Keysight offers a
right-angle adapter, as shown in Figure
9.34. With the E5346-63201 right-angle
adapter inserted in the 38-pin connector,
the adapter cable is connected parallel
to the target board surface. When using
the right-angle adapters, the 38-pin
connectors must be placed end-to-end
on the target board, as shown in Figure
9.35. Support shrouds cannot be used
with the right-angle adapter.
0.575 in
14.61mm
0.382 in
9.69 mm
0.758 in
19.26 mm
1.00 in
25.40 mm
Figure 9.34. E5346-63201 right-angle 38-pin adapter.
Note: The right-angle adapter adds significant
capacitance and inductance in series with the
probe. It is not recommended for state speeds
above 100 MHz or for signals with rise times
< 4 to 5 ns.
Figure 9.35. 38-pin connectors placed for use of right-angle adapter.
70 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Custom Probing
Low density, moderate performance
solutions shown in the “High-Density,
High-Performance” (page 62) section
of this document can be used in
place of the solutions described here.
Keysight recommends standard 0.1 inch
center connectors for normal density
applications if the loading/speed is not
a significant issue. Many of these items
are available from 3M or Keysight (see
Table 8). See the “Related Information”
section at the end of this document for
3M address information.
Table 8. Twenty-pin connectors for fixed configuration probing.
(Requires isolation adapter)
Keysight part number
1251-8106
1251-8473
3M part number
2520-6002
2520-5002
Connector description
20-pin, low-profile (straight)
20-pin, low-profile (right-angle)
Direct connection through
isolation adapter
Isolation adapters (Keysight part number
Logic analyzer pod cable
01650-63203) that connect to the end of
the probe cable are designed to perform
two functions. The first is to reduce the
number of pins required for the header
on the target board from 40 pins to 20
pins. This process reduces the board area
Isolation adapter
dedicated to the probing connection.
(Keysight 01650-63203)
The second function is to provide the
proper RC networks in a very convenient
package. Figure 9.36 illustrates how the
isolation adapter physically connects to
the target system and the equivalent load
20-pin connector
of the isolation adapter connected to a
(Keysight 1251-8106)
Keysight logic analyzer. Figures 9.37 and
9.38 show the pinout diagrams for the
Isolation adapter RC network
Equivalent load
probe cable and the isolation adapter,
k
respectively. There are two 20-pin
Isolation adapter RC network
connectors, along with their Keysight and
k
3M part numbers, listed in Table 8.
Equivalent load
100 k
100 k
Figure 9.36. Isolation adapter (01650-63203) and equivalent load.
1.
The Keysight 01650-63203 saves space by
using a common ground (see Figure 4.5). This
will impact signal fidelity, especially faster
transition times (< 4 to 5 ns).
71 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Custom Probing (Continued)
POWER GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
POWER GND
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
+5V (see note)
CLOCK
Do not connect
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
+5V
Figure 9.37. Pinout for probe cable.
Do not connect 2
D15 4
D13 6
D11 8
D9 10
D7 12
D5 14
D3 16
D1 18
GND 20
1
3
5
7
9
11
13
15
17
19
+5V (see note)
CLOCK
D14
D12
D10
D8
D6
D4
D2
D0
Figure 9.38. Pinout for 100 kΩ isolation adapter (Keysight part number 01650-63203).
1.
+5 V is supplied from the logic analyzer to provide power for analysis probes and demo boards.
DO NOT connect these pins to a +5 V supply in the target system!
72 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Custom Probing (Continued)
Direct connection through
40-pin connectors
The probe cable also can be plugged
directly into the various 40-pin
connectors shown in Table 9, but proper
isolation networks must be installed
directly onto the target system board
(see Figure 9.39 for the 40-pin connector
pinout).
Discrete components can also be used for
the proper isolation network. See Figure
9.42 for an equivalent load diagram for
the isolation networks.
Note that the effective input capacitive
lead of an isolation network using discrete
components is a function of the layout
geometry and the parasitic capacitance
of the input series damping resistor.
Table 9. Forty-pin connectors for fixed configuration probing.
(Requires isolation network installed on target board)
Keysight part number
1251-8158
1251-8831
1251-8931
3M part number
2540-5002
3432-6302
3432-5302
+5V (see note)
CLOCK
Do not connect
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
+5V
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
Connector description
40-Pin, low-profile (right-angle)
40-Pin, with long latches (straight)
40-Pin, with long latches (right-angle)
POWER GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
SIGNAL GND
POWER GND
Figure 9.39. Forty-pin connector pinout.
1.
+5 V is supplied from the logic analyzer to provide power for analysis probes and demo boards.
DO NOT connect these pins to a +5 V supply in the target system!
73 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Custom Probing (Continued)
Probe cable
(from logic
analyzer)
40-pin connector
(Keysight part number 1251-8828)
2 x 20-pin male connector with
0.1” x 0.1” spacing
Figure 9.40. Connecting probe cable to 40-pin connector with isolation networks.
74 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Probing Solutions for 40-pin Logic Analyzers
Custom Probing (Continued)
Notes on using discrete
components
Discrete components can be used to
design the isolation network. Keysight
recommends the circuit shown in Figure
9.42. To achieve the equivalent load
shown in the figure, trace lengths should
be minimized by locating the RC network
very near the measured node. Actual
load will be the stub length load added
to the equivalent load in the figure. Trace
length from the suggested on-board RC
network to the target connector must be
3 to 4 inches or less. This transmission
line should be designed for an impedance
in the range of 80 to 100 ohms (closer to
100 ohms is better).
Suggested on board isolation network
Equivalent load
k
7.4 pF
8.2 pF
Includes on board isolation network
and logic analyzer
Figure 9.41. Equivalent load for on-target discrete components.
75 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
Related Information
Publication title
U4164A 4 Gb/s State Mode Logic Analyzer Module - Data Sheet
Publication number
5992-1057EN
Pattern generator probing and accessories
Publication title
Measurement Modules for the 16900 Series - Data Sheet
16800 Series Portable Logic Analyzers - Data Sheet
Publication number
5989-0422EN
5989-5063EN
Analysis probes for processors and buses
Publication title
Application Support for Agilent Logic Analyzers - Configuration Guide
W2630 Series DDR2 BGA Probes for Logic Analyzers and Oscilloscopes - Data Sheet
W3630A Series DDR3 BGA Probes for Logic Analyzers and Oscilloscopes - Data Sheet
W4630A Series DDR4 BGA Interposers for Logic Analyzers - Data Sheet
Publication number
5966-4365E
5989-5964EN
5990-3179EN
5991-4258EN
3M
http://www.mmm.com/interconnects
AMP, Inc.
Phone: 1-717-986-7777
Fax: 1-717-986-7575
Phone (USA only): 1-800-522-6752
E-mail: [email protected]
Web site: http://www.amp.com
Keysight Technologies Test and Measurement Organization support line phone number: 1-800-452-4844
Keysight Technologies Test and Measurement Organization web site: http://www.keysight.com
Keysight Technologies Test and Measurement Logic Analyzers web site: http://www.keysight.com/find/logic
Keysight Technologies Test and Measurements Accessories web site: http://www.keysight.com/find/la_probing
76 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
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