AD ADUM3400CRWZ Quad-channel, digital isolators, enhanced system-level esd reliability Datasheet

Quad-Channel, Digital Isolators,
Enhanced System-Level ESD Reliability
ADuM3400/ADuM3401/ADuM3402
FEATURES
GENERAL DESCRIPTION
Enhanced system-level ESD performance per IEC 61000-4-x
Low power operation
5 V operation
1.4 mA per channel maximum @ 0 Mbps to 2 Mbps
4.3 mA per channel maximum @ 10 Mbps
34 mA per channel maximum @ 90 Mbps
3 V operation
0.9 mA per channel maximum @ 0 Mbps to 2 Mbps
2.4 mA per channel maximum @ 10 Mbps
20 mA per channel maximum @ 90 Mbps
Bidirectional communication
3 V/5 V level translation
High temperature operation: 105°C
High data rate: dc to 90 Mbps (NRZ)
Precise timing characteristics
2 ns maximum pulse-width distortion
2 ns maximum channel-to-channel matching
High common-mode transient immunity: >25 kV/μs
Output enable function
16-lead SOIC wide body, Pb-free package
Safety and regulatory approvals
UL recognition: 2500 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
VDE Certificate of Conformity
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01
DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000
VIORM = 560 V peak
The ADuM340x 1 are 4-channel digital isolators based on
Analog Devices’ iCoupler® technology. Combining high speed
CMOS and monolithic air core transformer technology, these
isolation components provide outstanding performance
characteristics superior to alternatives such as optocoupler devices.
APPLICATIONS
General-purpose multichannel isolation
SPI® interface/data converter isolation
RS-232/RS-422/RS-485 transceivers
Industrial field bus isolation
iCoupler devices remove the design difficulties commonly
associated with optocouplers. Typical optocoupler concerns
regarding uncertain current transfer ratios, nonlinear transfer
functions, and temperature and lifetime effects are eliminated
with the simple iCoupler digital interfaces and stable performance
characteristics. The need for external drivers and other discrete
components is eliminated with these iCoupler products.
Furthermore, iCoupler devices consume one-tenth to one-sixth the
power of optocouplers at comparable signal data rates.
The ADuM340x isolators provide three independent isolation
channels in a variety of channel configurations and data rates
(see the Ordering Guide). All models operate with the supply
voltage on either side ranging from 2.7 V to 5.5 V, providing
compatibility with lower voltage systems as well as enabling a
voltage translation functionality across the isolation barrier. The
ADuM340x isolators have a patented refresh feature that ensures dc
correctness in the absence of input logic transitions and during
power-up/power-down conditions.
In comparison to the ADuM140x isolators, the ADuM340x
isolators contain various circuit and layout changes to provide
increased capability relative to system-level IEC 61000-4-x testing
(ESD/burst/surge). The precise capability in these tests for either
the ADuM140x or ADuM340x products is strongly determined by
the design and layout of the user’s board or module. For more
information, see Application Note AN-793, ESD/Latch-Up
Considerations with iCoupler Isolation Products.
1
Protected by U.S. Patents 5,952,849 and 6,873,065. Other patents pending.
VDD1 1
16
VDD2
VDD1 1
16
VDD2
VDD1 1
16
VDD2
GND1 2
15
GND2
GND1 2
15
GND2
GND1 2
15
GND2
DECODE
14
VOA
VIA 3
ENCODE
DECODE
14
VOA
VIA 3
ENCODE
DECODE
14
VOA
VIB 4
ENCODE
DECODE
13
VOB
VIB 4
ENCODE
DECODE
13
VOB
VIB 4
ENCODE
DECODE
13
VOB
VIC 5
ENCODE
DECODE
12
VOC
VIC 5
ENCODE
DECODE
12
VOC
VOC 5
DECODE
ENCODE
12
VIC
VID 6
ENCODE
DECODE
11
VOD
VOD 6
DECODE
ENCODE
11
VID
VOD 6
DECODE
ENCODE
11
VID
NC 7
10
VE2
VE1 7
10
VE2
VE1 7
10
VE2
GND1 8
9
GND1 8
9
GND1 8
9
GND2
Figure 1. ADuM3400 Functional Block Diagram
GND2
05983-002
ENCODE
05983-001
VIA 3
Figure 2. ADuM3401 Functional Block Diagram
GND2
05983-003
FUNCTIONAL BLOCK DIAGRAMS
Figure 3. ADuM3402 Functional Block Diagram
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.
ADuM3400/ADuM3401/ADuM3402
TABLE OF CONTENTS
Features .............................................................................................. 1
Recommended Operating Conditions .................................... 13
Applications....................................................................................... 1
Absolute Maximum Ratings ......................................................... 14
General Description ......................................................................... 1
ESD Caution................................................................................ 14
Functional Block Diagrams............................................................. 1
Pin Configurations and Function Descriptions ......................... 15
Revision History ............................................................................... 2
Typical Performance Characteristics ........................................... 18
Specifications..................................................................................... 3
Application Information................................................................ 20
Electrical Characteristics—5 V Operation................................ 3
PC Board Layout ........................................................................ 20
Electrical Characteristics—3 V Operation................................ 6
System-Level ESD Considerations and Enhancements ........ 20
Electrical Characteristics—Mixed 5 V/3 V or 3 V/5 V
Operation....................................................................................... 8
Propagation Delay-Related Parameters................................... 20
Package Characteristics ............................................................. 12
Regulatory Information............................................................. 12
Insulation and Safety-Related Specifications.......................... 12
DC Correctness and Magnetic Field Immunity........................... 20
Power Consumption .................................................................. 22
Outline Dimensions ....................................................................... 23
Ordering Guide .......................................................................... 23
DIN EN 60747-5-2 (VDE 0884 Part 2) Insulation
Characteristics ............................................................................ 13
REVISION HISTORY
3/06—Revision 0: Initial Version
Rev. 0 | Page 2 of 24
ADuM3400/ADuM3401/ADuM3402
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS—5 V OPERATION 1
4.5 V ≤ VDD1 ≤ 5.5 V, 4.5 V ≤ VDD2 ≤ 5.5 V; all minimum/maximum specifications apply over the entire recommended operation range,
unless otherwise noted; all typical specifications are at TA = 25°C, VDD1 = VDD2 = 5 V.
Table 1.
Parameter
DC SPECIFICATIONS
Input Supply Current per Channel, Quiescent
Output Supply Current per Channel, Quiescent
ADuM3400, Total Supply Current, Four Channels 2
DC to 2 Mbps
VDD1 Supply Current
VDD2 Supply Current
10 Mbps (BRW and CRW Grades Only)
VDD1 Supply Current
VDD2 Supply Current
90 Mbps (CRW Grade Only)
VDD1 Supply Current
VDD2 Supply Current
ADuM3401, Total Supply Current, Four Channels2
DC to 2 Mbps
VDD1 Supply Current
VDD2 Supply Current
10 Mbps (BRW and CRW Grades Only)
VDD1 Supply Current
VDD2 Supply Current
90 Mbps (CRW Grade Only)
VDD1 Supply Current
VDD2 Supply Current
ADuM3402, Total Supply Current, Four Channels2
DC to 2 Mbps
VDD1 or VDD2 Supply Current
10 Mbps (BRW and CRW Grades Only)
VDD1 or VDD2 Supply Current
90 Mbps (CRW Grade Only)
VDD1 or VDD2 Supply Current
For All Models
Input Currents
Logic High Input Threshold
Logic Low Input Threshold
Logic High Output Voltages
Logic Low Output Voltages
Symbol
Typ
Max Unit
IDDI (Q)
IDDO (Q)
0.57
0.29
0.83
0.35
mA
mA
IDD1 (Q)
IDD2 (Q)
2.9
1.2
3.5
1.9
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
IDD1 (10)
IDD2 (10)
9.0
3.0
11.6
5.5
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
IDD1 (90)
IDD2 (90)
72
19
100
36
mA
mA
45 MHz logic signal freq.
45 MHz logic signal freq.
IDD1 (Q)
IDD2 (Q)
2.5
1.6
3.2
2.4
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
IDD1 (10)
IDD2 (10)
7.4
4.4
10.6
6.5
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
IDD1 (90)
IDD2 (90)
59
32
82
46
mA
mA
45 MHz logic signal freq.
45 MHz logic signal freq.
IDD1 (Q), IDD2 (Q)
2.0
2.8
mA
DC to 1 MHz logic signal freq.
IDD1 (10), IDD2 (10)
6.0
7.5
mA
5 MHz logic signal freq.
IDD1 (90), IDD2 (90)
51
62
mA
45 MHz logic signal freq.
μA
0 ≤ VIA, VIB, VIC, VID ≤ VDD1 or VDD2,
0 ≤ VE1, VE2 ≤ VDD1 or VDD2
IIA, IIB, IIC,
IID, IE1, IE2
VIH, VEH
VIL, VEL
VOAH, VOBH,
VOCH, VODH
VOAL, VOBL,
VOCL, VODL
Min
−10
+0.01 +10
2.0
0.8
VDD1, VDD2 − 0.1 5.0
VDD1, VDD2 − 0.4 4.8
0.0
0.04
0.2
Rev. 0 | Page 3 of 24
0.1
0.1
0.4
V
V
V
V
V
V
V
Test Conditions
IOx = −20 μA, VIx = VIxH
IOx = −4 mA, VIx = VIxH
IOx = 20 μA, VIx = VIxL
IOx = 400 μA, VIx = VIxL
IOx = 4 mA, VIx = VIxL
ADuM3400/ADuM3401/ADuM3402
Parameter
SWITCHING SPECIFICATIONS
ADuM340xARW
Minimum Pulse Width 3
Maximum Data Rate 4
Propagation Delay 5
Pulse-Width Distortion, |tPLH − tPHL|5
Propagation Delay Skew 6
Channel-to-Channel Matching 7
ADuM340xBRW
Minimum Pulse Width3
Maximum Data Rate4
Propagation Delay5
Pulse-Width Distortion, |tPLH − tPHL|5
Change vs. Temperature
Propagation Delay Skew6
Channel-to-Channel Matching,
Codirectional Channels7
Channel-to-Channel Matching,
Opposing-Directional Channels7
ADuM340xCRW
Minimum Pulse Width3
Maximum Data Rate4
Propagation Delay5
Pulse-Width Distortion, |tPLH − tPHL|5
Change vs. Temperature
Propagation Delay Skew6
Channel-to-Channel Matching,
Codirectional Channels7
Channel-to-Channel Matching,
Opposing-Directional Channels7
For All Models
Output Disable Propagation Delay
(High/Low-to-High Impedance)
Output Enable Propagation Delay
(High Impedance-to-High/Low)
Output Rise/Fall Time (10% to 90%)
Common-Mode Transient Immunity
at Logic High Output 8
Common-Mode Transient Immunity
at Logic Low Output8
Refresh Rate
Input Dynamic Supply Current per Channel 9
Output Dynamic Supply Current per Channel9
Symbol
Min
Typ
PW
tPHL, tPLH
PWD
tPSK
tPSKCD/OD
1
50
65
PW
Max Unit
Test Conditions
1000 ns
Mbps
100 ns
40
ns
50
ns
50
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
100
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
tPSK
tPSKCD
15
3
ns
Mbps
ns
ns
ps/°C
ns
ns
tPSKOD
6
ns
CL = 15 pF, CMOS signal levels
11.1
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
tPHL, tPLH
PWD
10
20
32
50
3
5
PW
tPSK
tPSKCD
10
2
ns
Mbps
ns
ns
ps/°C
ns
ns
tPSKOD
5
ns
CL = 15 pF, CMOS signal levels
tPHL, tPLH
PWD
90
18
8.3
120
27
0.5
3
32
2
tPHZ, tPLH
6
8
ns
CL = 15 pF, CMOS signal levels
tPZH, tPZL
6
8
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
VIx = VDD1/VDD2, VCM = 1000 V,
transient magnitude = 800 V
VIx = 0 V, VCM = 1000 V,
transient magnitude = 800 V
tR/tF
|CMH|
25
2.5
35
ns
kV/μs
|CML|
25
35
kV/μs
1.2
0.20
0.05
Mbps
mA/Mbps
mA/Mbps
fr
IDDI (D)
IDDO (D)
Rev. 0 | Page 4 of 24
ADuM3400/ADuM3401/ADuM3402
1
All voltages are relative to their respective ground.
The supply current values for all four channels are combined when running at identical data rates. Output supply current values are specified with no output load
present. The supply current associated with an individual channel operating at a given data rate can be calculated as described in the Power Consumption section.
See Figure 8 through Figure 10 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions. See Figure 11 through
Figure 15 for total VDD1 and VDD2 supply currents as a function of data rate for ADuM3400/ADuM3401/ADuM3402 channel configurations.
3
The minimum pulse width is the shortest pulse width at which the specified pulse-width distortion is guaranteed.
4
The maximum data rate is the fastest data rate at which the specified pulse-width distortion is guaranteed.
5
tPHL propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH propagation delay is
measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal.
6
tPSK is the magnitude of the worst-case difference in tPHL or tPLH that is measured between units at the same operating temperature, supply voltages, and output load
within the recommended operating conditions.
7
Codirectional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of
the isolation barrier. Opposing-directional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with
inputs on opposing sides of the isolation barrier.
8
CMH is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDD2. CML is the maximum common-mode voltage slew rate
that can be sustained while maintaining VO < 0.8 V. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. The transient
magnitude is the range over which the common mode is slewed.
9
Dynamic supply current is the incremental amount of supply current required for a 1 Mbps increase in signal data rate. See Figure 8 through Figure 10 for information
on per-channel supply current for unloaded and loaded conditions. See the Power Consumption section for guidance on calculating the per-channel supply current
for a given data rate.
2
Rev. 0 | Page 5 of 24
ADuM3400/ADuM3401/ADuM3402
ELECTRICAL CHARACTERISTICS—3 V OPERATION 1
2.7 V ≤ VDD1 ≤ 3.6 V, 2.7 V ≤ VDD2 ≤ 3.6 V; all minimum/maximum specifications apply over the entire recommended operation range,
unless otherwise noted; all typical specifications are at TA = 25°C, VDD1 = VDD2 = 3.0 V.
Table 2.
Parameter
DC SPECIFICATIONS
Input Supply Current per Channel, Quiescent
Output Supply Current per Channel, Quiescent
ADuM3400, Total Supply Current, Four Channels 2
DC to 2 Mbps
VDD1 Supply Current
VDD2 Supply Current
10 Mbps (BRW and CRW Grades Only)
VDD1 Supply Current
VDD2 Supply Current
90 Mbps (CRW Grade Only)
VDD1 Supply Current
VDD2 Supply Current
ADuM3401, Total Supply Current, Four Channels2
DC to 2 Mbps
VDD1 Supply Current
VDD2 Supply Current
10 Mbps (BRW and CRW Grades Only)
VDD1 Supply Current
VDD2 Supply Current
90 Mbps (CRW Grade Only)
VDD1 Supply Current
VDD2 Supply Current
ADuM3402, Total Supply Current, Four Channels2
DC to 2 Mbps
VDD1 or VDD2 Supply Current
10 Mbps (BRW and CRW Grades Only)
VDD1 or VDD2 Supply Current
90 Mbps (CRW Grade Only)
VDD1 or VDD2 Supply Current
For All Models
Input Currents
Logic High Input Threshold
Logic Low Input Threshold
Logic High Output Voltages
Logic Low Output Voltages
SWITCHING SPECIFICATIONS
ADuM340xARW
Minimum Pulse Width 3
Maximum Data Rate 4
Propagation Delay 5
Pulse-Width Distortion, |tPLH − tPHL|5
Propagation Delay Skew 6
Channel-to-Channel Matching 7
Symbol
Typ
Max Unit
IDDI (Q)
IDDO (Q)
0.31
0.19
0.49
0.27
mA
mA
IDD1 (Q)
IDD2 (Q)
1.6
0.7
2.1
1.2
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
IDD1 (10)
IDD2 (10)
4.8
1.8
7.1
2.3
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
IDD1 (90)
IDD2 (90)
37
11
54
15
mA
mA
45 MHz logic signal freq.
45 MHz logic signal freq.
IDD1 (Q)
IDD2 (Q)
1.4
0.9
1.9
1.5
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
IDD1 (10)
IDD2 (10)
4.1
2.5
5.6
3.3
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
IDD1 (90)
IDD2 (90)
31
17
44
24
mA
mA
45 MHz logic signal freq.
45 MHz logic signal freq.
IDD1 (Q), IDD2 (Q)
1.2
1.7
mA
DC to 1 MHz logic signal freq.
IDD1 (10), IDD2 (10)
3.3
4.4
mA
5 MHz logic signal freq.
IDD1 (90), IDD2 (90)
24
39
mA
45 MHz logic signal freq.
μA
0 ≤ VIA, VIB, VIC, VID ≤ VDD1 or VDD2,
0 ≤ VE1,VE2 ≤ VDD1 or VDD2
IIA, IIB, IIC,
IID, IE1, IE2
VIH, VEH
VIL, VEL
VOAH, VOBH,
VOCH, VODH
VOAL, VOBL,
VOCL, VODL
Min
−10
+0.01 +10
1.6
0.4
VDD1, VDD2 − 0.1 3.0
VDD1, VDD2 − 0.4 2.8
0.0
0.04
0.2
PW
tPHL, tPLH
PWD
tPSK
tPSKCD/OD
1
50
Rev. 0 | Page 6 of 24
75
0.1
0.1
0.4
V
V
V
V
V
V
V
1000 ns
Mbps
100 ns
40
ns
50
ns
50
ns
Test Conditions
IOx = −20 μA, VIx = VIxH
IOx = −4 mA, VIx = VIxH
IOx = 20 μA, VIx = VIxL
IOx = 400 μA, VIx = VIxL
IOx = 4 mA, VIx = VIxL
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
ADuM3400/ADuM3401/ADuM3402
Parameter
ADuM340xBRW
Minimum Pulse Width3
Maximum Data Rate4
Propagation Delay5
Pulse-Width Distortion, |tPLH − tPHL|5
Change vs. Temperature
Propagation Delay Skew6
Channel-to-Channel Matching,
Codirectional Channels7
Channel-to-Channel Matching,
Opposing-Directional Channels7
ADuM340xCRW
Minimum Pulse Width3
Maximum Data Rate4
Propagation Delay5
Pulse-Width Distortion, |tPLH − tPHL|5
Change vs. Temperature
Propagation Delay Skew6
Channel-to-Channel Matching,
Codirectional Channels7
Channel-to-Channel Matching,
Opposing-Directional Channels7
For All Models
Output Disable Propagation Delay
(High/Low-to-High Impedance)
Output Enable Propagation Delay
(High Impedance-to-High/Low)
Output Rise/Fall Time (10% to 90%)
Common-Mode Transient Immunity
at Logic High Output 8
Common-Mode Transient Immunity
at Logic Low Output8
Refresh Rate
Input Dynamic Supply Current per Channel 9
Output Dynamic Supply Current per Channel9
Symbol
Min
Typ
PW
Max Unit
Test Conditions
100
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
tPSK
tPSKCD
22
3
ns
Mbps
ns
ns
ps/°C
ns
ns
tPSKOD
6
ns
CL = 15 pF, CMOS signal levels
11.1
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
tPHL, tPLH
PWD
10
20
38
50
3
5
PW
tPSK
tPSKCD
16
2
ns
Mbps
ns
ns
ps/°C
ns
ns
tPSKOD
5
ns
CL = 15 pF, CMOS signal levels
tPHL, tPLH
PWD
90
20
8.3
120
34
0.5
3
45
2
tPHZ, tPLH
6
8
ns
CL = 15 pF, CMOS signal levels
tPZH, tPZL
6
8
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
VIx = VDD1/VDD2, VCM = 1000 V,
transient magnitude = 800 V
VIx = 0 V, VCM = 1000 V,
transient magnitude = 800 V
tR/tF
|CMH|
25
3
35
ns
kV/μs
|CML|
25
35
kV/μs
1.1
0.10
0.03
Mbps
mA/Mbps
mA/Mbps
fr
IDDI (D)
IDDO (D)
1
All voltages are relative to their respective ground.
The supply current values for all four channels are combined when running at identical data rates. Output supply current values are specified with no output load
present. The supply current associated with an individual channel operating at a given data rate can be calculated as described in the Power Consumption section.
See Figure 8 through Figure 10 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions. See Figure 11 through
Figure 15 for total VDD1 and VDD2 supply currents as a function of data rate for ADuM3400/ADuM3401/ADuM3402 channel configurations.
3
The minimum pulse width is the shortest pulse width at which the specified pulse-width distortion is guaranteed.
4
The maximum data rate is the fastest data rate at which the specified pulse-width distortion is guaranteed.
5
tPHL propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH propagation delay is
measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal.
6
tPSK is the magnitude of the worst-case difference in tPHL or tPLH that is measured between units at the same operating temperature, supply voltages, and output load
within the recommended operating conditions.
7
Codirectional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of
the isolation barrier. Opposing-directional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with
inputs on opposing sides of the isolation barrier.
8
CMH is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDD2. CML is the maximum common-mode voltage slew rate
that can be sustained while maintaining VO < 0.8 V. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. The transient
magnitude is the range over which the common mode is slewed.
9
Dynamic supply current is the incremental amount of supply current required for a 1 Mbps increase in signal data rate. See Figure 8 through Figure 10 for information
on per-channel supply current for unloaded and loaded conditions. See the Power Consumption section for guidance on calculating the per-channel supply current
for a given data rate.
2
Rev. 0 | Page 7 of 24
ADuM3400/ADuM3401/ADuM3402
ELECTRICAL CHARACTERISTICS—MIXED 5 V/3 V OR 3 V/5 V OPERATION 1
5 V/3 V operation: 4.5 V ≤ VDD1 ≤ 5.5 V, 2.7 V ≤ VDD2 ≤ 3.6 V; 3 V/5 V operation: 2.7 V ≤ VDD1 ≤ 3.6 V, 4.5 V ≤ VDD2 ≤ 5.5 V; all
minimum/maximum specifications apply over the entire recommended operation range, unless otherwise noted; all typical specifications
are at TA = 25°C; VDD1 = 3.0 V, VDD2 = 5 V or VDD1 = 5 V, VDD2 = 3.0 V.
Table 3.
Parameter
DC SPECIFICATIONS
Input Supply Current per Channel, Quiescent
5 V/3 V Operation
3 V/5 V Operation
Output Supply Current per Channel, Quiescent
5 V/3 V Operation
3 V/5 V Operation
ADuM3400, Total Supply Current, Four Channels2
DC to 2 Mbps
VDD1 Supply Current
5 V/3 V Operation
3 V/5 V Operation
VDD2 Supply Current
5 V/3 V Operation
3 V/5 V Operation
10 Mbps (BRW and CRW Grades Only)
VDD1 Supply Current
5 V/3 V Operation
3 V/5 V Operation
VDD2 Supply Current
5 V/3 V Operation
3 V/5 V Operation
90 Mbps (CRW Grade Only)
VDD1 Supply Current
5 V/3 V Operation
3 V/5 V Operation
VDD2 Supply Current
5 V/3 V Operation
3 V/5 V Operation
ADuM3401, Total Supply Current, Four Channels2
DC to 2 Mbps
VDD1 Supply Current
5 V/3 V Operation
3 V/5 V Operation
VDD2 Supply Current
5 V/3 V Operation
3 V/5 V Operation
10 Mbps (BRW and CRW Grades Only)
VDD1 Supply Current
5 V/3 V Operation
3 V/5 V Operation
VDD2 Supply Current
5 V/3 V Operation
3 V/5 V Operation
Symbol
Min
Typ
Max Unit
Test Conditions
0.57
0.31
0.83
0.49
mA
mA
0.29
0.19
0.27
0.35
mA
mA
2.9
1.6
3.5
2.1
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
0.7
1.2
1.2
1.9
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
9.0
4.8
11.6
7.1
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
1.8
3.0
2.3
5.5
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
72
37
100
54
mA
mA
45 MHz logic signal freq.
45 MHz logic signal freq.
11
19
15
36
mA
mA
45 MHz logic signal freq.
45 MHz logic signal freq.
2.5
1.4
3.2
1.9
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
0.9
1.6
1.5
2.4
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
7.4
4.1
10.6
5.6
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
2.5
4.4
3.3
6.5
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
IDDI (Q)
IDDO (Q)
IDD1 (Q)
IDD2 (Q)
IDD1 (10)
IDD2 (10)
IDD1 (90)
IDD2 (90)
IDD1 (Q)
IDD2 (Q)
IDD1 (10)
IDD2 (10)
Rev. 0 | Page 8 of 24
ADuM3400/ADuM3401/ADuM3402
Parameter
90 Mbps (CRW Grade Only)
VDD1 Supply Current
5 V/3 V Operation
3 V/5 V Operation
VDD2 Supply Current
5 V/3 V Operation
3 V/5 V Operation
ADuM3402, Total Supply Current, Four Channels2
DC to 2 Mbps
VDD1 Supply Current
5 V/3 V Operation
3 V/5 V Operation
VDD2 Supply Current
5 V/3 V Operation
3 V/5 V Operation
10 Mbps (BRW and CRW Grades Only)
VDD1 Supply Current
5 V/3 V Operation
3 V/5 V Operation
VDD2 Supply Current
5 V/3 V Operation
3 V/5 V Operation
90 Mbps (CRW Grade Only)
VDD1 Supply Current
5 V/3 V Operation
3 V/5 V Operation
VDD2 Supply Current
5 V/3 V Operation
3 V/5 V Operation
For All Models
Input Currents
Logic High Input Threshold
5 V/3 V Operation
3 V/5 V Operation
Logic Low Input Threshold
5 V/3 V Operation
3 V/5 V Operation
Logic High Output Voltages
Logic Low Output Voltages
SWITCHING SPECIFICATIONS
ADuM340xARW
Minimum Pulse Width 3
Maximum Data Rate 4
Propagation Delay 5
Pulse-Width Distortion, |tPLH − tPHL|5
Propagation Delay Skew 6
Channel-to-Channel Matching 7
Symbol
Min
Typ
Max Unit
Test Conditions
59
31
82
44
mA
mA
45 MHz logic signal freq.
45 MHz logic signal freq.
17
32
24
46
mA
mA
45 MHz logic signal freq.
45 MHz logic signal freq.
2.0
1.2
2.8
1.7
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
1.2
2.0
1.7
2.8
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
6.0
3.3
7.5
4.4
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
3.3
6.0
4.4
7.5
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
46
24
62
39
mA
mA
45 MHz logic signal freq.
45 MHz logic signal freq.
24
46
39
62
mA
mA
45 MHz logic signal freq.
45 MHz logic signal freq.
+0.01
+10
μA
0 ≤ VIA,VIB, VIC,VID ≤ VDD1 or VDD2,
0 ≤ VE1,VE2 ≤ VDD1 or VDD2
IDD1 (90)
IDD2 (90)
IDD1 (Q)
IDD2 (Q)
IDD1 (10)
IDD2 (10)
IDD1 (90)
IDD2 (90)
IIA, IIB, IIC,
IID, IE1, IE2
VIH, VEH
−10
2.0
1.6
V
V
VIL, VEL
0.8
0.4
VOAH, VOBH, VDD1, VDD2 − 0.1
VOCH, VODH VDD1, VDD2 − 0.4
VOAL, VOBL,
VOCL, VODL
VDD1, VDD2
VDD1, VDD2 − 0.2
0.0
0.1
0.04
0.1
0.2
0.4
PW
tPHL, tPLH
PWD
tPSK
tPSKCD/OD
1
50
70
Rev. 0 | Page 9 of 24
V
V
V
V
V
V
V
1000 ns
Mbps
100 ns
40
ns
50
ns
50
ns
IOx = −20 μA, VIx = VIxH
IOx = −4 mA, VIx = VIxH
IOx = 20 μA, VIx = VIxL
IOx = 400 μA, VIx = VIxL
IOx = 4 mA, VIx = VIxL
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
ADuM3400/ADuM3401/ADuM3402
Parameter
ADuM340xBRW
Minimum Pulse Width3
Maximum Data Rate4
Propagation Delay5
Pulse-Width Distortion, |tPLH − tPHL|5
Change vs. Temperature
Propagation Delay Skew6
Channel-to-Channel Matching,
Codirectional Channels7
Channel-to-Channel Matching,
Opposing-Directional Channels7
ADuM340xCRW
Minimum Pulse Width3
Maximum Data Rate4
Propagation Delay5
Pulse-Width Distortion, |tPLH − tPHL|5
Change vs. Temperature
Propagation Delay Skew6
Channel-to-Channel Matching,
Codirectional Channels7
Channel-to-Channel Matching,
Opposing-Directional Channels7
For All Models
Output Disable Propagation Delay
(High/Low-to-High Impedance)
Output Enable Propagation Delay
(High Impedance-to-High/Low)
Output Rise/Fall Time (10% to 90%)
5 V/3 V Operation
3 V/5 V Operation
Common-Mode Transient Immunity
at Logic High Output 8
Common-Mode Transient Immunity
at Logic Low Output8
Refresh Rate
5 V/3 V Operation
3 V/5 V Operation
Input Dynamic Supply Current per Channel9
5 V/3 V Operation
3 V/5 V Operation
Output Dynamic Supply Current per Channel9
5 V/3 V Operation
3 V/5 V Operation
Symbol
Min
Typ
PW
Max Unit
Test Conditions
100
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
tPSK
tPSKCD
22
3
ns
Mbps
ns
ns
ps/°C
ns
ns
tPSKOD
6
ns
CL = 15 pF, CMOS signal levels
11.1
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
tPHL, tPLH
PWD
10
15
35
50
3
5
PW
tPSK
tPSKCD
14
2
ns
Mbps
ns
ns
ps/°C
ns
ns
tPSKOD
5
ns
CL = 15 pF, CMOS signal levels
tPHL, tPLH
PWD
90
20
8.3
120
30
0.5
3
40
2
tPHZ, tPLH
6
8
ns
CL = 15 pF, CMOS signal levels
tPZH, tPZL
6
8
ns
CL = 15 pF, CMOS signal levels
tR/tf
CL = 15 pF, CMOS signal levels
|CMH|
25
3.0
2.5
35
ns
ns
kV/μs
|CML|
25
35
kV/μs
1.2
1.1
Mbps
Mbps
0.20
0.10
mA/Mbps
mA/Mbps
0.03
0.05
mA/Mbps
mA/Mbps
fr
IDDI (D)
IDDO (D)
Rev. 0 | Page 10 of 24
VIx = VDD1/VDD2, VCM = 1000 V,
transient magnitude = 800 V
VIx = 0 V, VCM = 1000 V,
transient magnitude = 800 V
ADuM3400/ADuM3401/ADuM3402
1
All voltages are relative to their respective ground.
The supply current values for all four channels are combined when running at identical data rates. Output supply current values are specified with no output load
present. The supply current associated with an individual channel operating at a given data rate can be calculated as described in the Power Consumption section.
See Figure 8 through Figure 10 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions. See Figure 11 through
Figure 15 for total VDD1 and VDD2 supply currents as a function of data rate for ADuM3400/ADuM3401/ADuM3402 channel configurations.
3
The minimum pulse width is the shortest pulse width at which the specified pulse-width distortion is guaranteed.
4
The maximum data rate is the fastest data rate at which the specified pulse-width distortion is guaranteed.
5
tPHL propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH propagation delay is
measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal.
6
tPSK is the magnitude of the worst-case difference in tPHL or tPLH that is measured between units at the same operating temperature, supply voltages, and output load
within the recommended operating conditions.
7
Codirectional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of
the isolation barrier. Opposing-directional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with
inputs on opposing sides of the isolation barrier.
8
CMH is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDD2. CML is the maximum common-mode voltage slew rate
that can be sustained while maintaining VO < 0.8 V. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. The transient
magnitude is the range over which the common mode is slewed.
9
Dynamic supply current is the incremental amount of supply current required for a 1 Mbps increase in signal data rate. See Figure 8 through Figure 10 for information
on per-channel supply current for unloaded and loaded conditions. See the Power Consumption section for guidance on calculating the per-channel supply current
for a given data rate.
2
Rev. 0 | Page 11 of 24
ADuM3400/ADuM3401/ADuM3402
PACKAGE CHARACTERISTICS
Table 4.
Parameter
Resistance (Input to Output) 1
Capacitance (Input to Output)1
Input Capacitance 2
IC Junction-to-Case Thermal Resistance, Side 1
IC Junction-to-Case Thermal Resistance, Side 2
1
2
Symbol
RI-O
CI-O
CI
θJCI
θJCO
Min
Typ
1012
2.2
4.0
33
28
Max
Unit
Ω
pF
pF
°C/W
°C/W
Test Conditions
f = 1 MHz
Thermocouple located at
center of package underside
Device considered a 2-terminal device; Pin 1, Pin 2, Pin 3, Pin 4, Pin 5, Pin 6, Pin 7, and Pin 8 shorted together and Pin 9, Pin 10, Pin 11, Pin 12, Pin 13, Pin 14, Pin 15, and
Pin 16 shorted together.
Input capacitance is from any input data pin to ground.
REGULATORY INFORMATION
The ADuM340x is approved by the organizations listed in Table 5.
Table 5.
UL 1
Recognized under
1577 component recognition program1
Double/reinforced insulation,
2500 V rms isolation voltage
File E214100
1
2
CSA
Approved under
CSA Component Acceptance Notice #5A
Reinforced insulation per
CSA 60950-1-03 and IEC 60950-1,
400 V rms maximum working voltage
VDE 2
Certified according to
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-012
Basic insulation, 560 V peak
Complies with
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01,
DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000
Reinforced insulation, 560 V peak
File 2471900-4880-0001
File 205078
In accordance with UL1577, each ADuM340x is proof tested by applying an insulation test voltage ≥3000 V rms for 1 sec (current leakage detection limit = 5 μA).
In accordance with DIN EN 60747-5-2, each ADuM340x is proof tested by applying an insulation test voltage ≥1050 V peak for 1 sec (partial discharge detection limit =
5 pC). The * marking branded on the component designates DIN EN 60747-5-2 approval.
INSULATION AND SAFETY-RELATED SPECIFICATIONS
Table 6.
Parameter
Rated Dielectric Insulation Voltage
Minimum External Air Gap (Clearance)
Symbol Value
2500
L(I01)
7.7 min
Unit Conditions
V rms 1-minute duration
mm
Measured from input terminals to output terminals,
shortest distance through air
8.1 min
mm
Measured from input terminals to output terminals,
shortest distance path along body
0.017 min mm
Insulation distance through insulation
>175
V
DIN IEC 112/VDE 0303 Part 1
IIIa
Material Group (DIN VDE 0110, 1/89, Table 1)
Minimum External Tracking (Creepage)
L(I02)
Minimum Internal Gap (Internal Clearance)
Tracking Resistance (Comparative Tracking Index)
Isolation Group
CTI
Rev. 0 | Page 12 of 24
ADuM3400/ADuM3401/ADuM3402
DIN EN 60747-5-2 (VDE 0884 PART 2) INSULATION CHARACTERISTICS
Table 7.
Description
Installation Classification per DIN VDE 0110
For Rated Mains Voltage ≤150 V rms
For Rated Mains Voltage ≤300 V rms
For Rated Mains Voltage ≤400 V rms
Climatic Classification
Pollution Degree (DIN VDE 0110, Table 1)
Maximum Working Insulation Voltage
Input-to-Output Test Voltage, Method b1
VIORM × 1.875 = VPR, 100% Production Test, tm = 1 sec, Partial Discharge < 5 pC
Input-to-Output Test Voltage, Method a
After Environmental Tests Subgroup 1
VIORM × 1.6 = VPR, tm = 60 sec, Partial Discharge < 5 pC
After Input and/or Safety Test Subgroup 2/3
VIORM × 1.2 = VPR, tm = 60 sec, Partial Discharge < 5 pC
Highest Allowable Overvoltage (Transient Overvoltage, tTR = 10 sec)
Safety-Limiting Values (Maximum Value Allowed in the Event of a Failure; also see Figure 4)
Case Temperature
Side 1 Current
Side 2 Current
Insulation Resistance at TS, VIO = 500 V
Symbol
Characteristic
Unit
VIORM
VPR
I-IV
I-III
I-II
40/105/21
2
560
1050
V peak
V peak
896
V peak
672
V peak
VTR
4000
V peak
TS
IS1
IS2
RS
150
265
335
>109
°C
mA
mA
Ω
VPR
These isolators are suitable for basic electrical isolation only within the safety limit data. Maintenance of the safety data is ensured by
protective circuits. The * marking on packages denotes DIN EN 60747-5-2 approval.
350
RECOMMENDED OPERATING CONDITIONS
Table 8.
250
Parameter
Operating Temperature
Supply Voltages 1
Input Signal Rise and Fall Times
SIDE #2
200
150
SIDE #1
100
1
50
0
0
50
100
150
CASE TEMPERATURE (°C)
200
Symbol Min Max Unit
TA
−40 +105 °C
VDD1, VDD 2 2.7 5.5
V
1.0
ms
All voltages are relative to their respective ground. See the DC Correctness
and Magnetic Field Immunity section for information on immunity to
external magnetic fields.
05983-004
SAFETY-LIMITING CURRENT (mA)
300
Figure 4. Thermal Derating Curve, Dependence of Safety-Limiting Values
with Case Temperature per DIN EN 60747-5-2
Rev. 0 | Page 13 of 24
ADuM3400/ADuM3401/ADuM3402
ABSOLUTE MAXIMUM RATINGS
Ambient temperature = 25°C, unless otherwise noted.
Table 9.
Parameter
Storage Temperature
Ambient Operating Temperature
Supply Voltages 1
Input Voltage1, 2
Output Voltage1, 2
Average Output Current per Pin 3
Side 1
Side 2
Common-Mode Transients 4
Symbol
TST
TA
VDD1, VDD2
VIA, VIB, VIC, VID, VE1,VE2
VOA, VOB, VOC, VOD
Min
−65
−40
−0.5
−0.5
−0.5
Max
+150
+105
+7.0
VDDI + 0.5
VDDO + 0.5
Unit
°C
°C
V
V
V
IO1
IO2
CMH, CML
−18
−22
−100
+18
+22
+100
mA
mA
kV/μs
1
All voltages are relative to their respective ground.
VDDI and VDDO refer to the supply voltages on the input and output sides of a given channel, respectively. See the PC Board Layout section.
3
See Figure 4 for maximum rated current values for various temperatures.
4
Refers to common-mode transients across the insulation barrier. Common-mode transients exceeding the Absolute Maximum Ratings can cause latch-up or
permanent damage.
2
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only;
functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is
not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on
the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Table 10. Truth Table (Positive Logic)
VIX Input 1
H
L
X
X
X
X
VEX Input 2
H or NC
H or NC
L
H or NC
L
X
VDDI State1
Powered
Powered
Powered
Unpowered
Unpowered
Powered
VDDO State1
Powered
Powered
Powered
Powered
Powered
Unpowered
VOX Output1
Notes
H
L
Z
H
Outputs return to the input state within 1 μs of VDDI power restoration.
Z
Indeterminate Outputs return to the input state within 1 μs of VDDO power restoration
if VEX state is H or NC. Outputs return to high impedance state within
8 ns of VDDO power restoration if VEX state is L.
1
VIX and VOX refer to the input and output signals of a given channel (A, B, C, or D). VEX refers to the output enable signal on the same side as the VOX outputs. VDDI and
VDDO refer to the supply voltages on the input and output sides of the given channel, respectively.
2
In noisy environments, connecting VEX to an external logic high or low is recommended.
Rev. 0 | Page 14 of 24
ADuM3400/ADuM3401/ADuM3402
VDD1 1
16
VDD2
*GND1 2
15
GND2*
VIA 3
ADuM3400
14
VOA
VIB 4
TOP VIEW
(Not to Scale)
13
VOB
12
VOC
VID 6
11
VOD
NC 7
10
VE2
*GND1 8
9
GND2*
VIC 5
NC = NO CONNECT
05983-005
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Figure 5. ADuM3400 Pin Configuration
*Pin 2 and Pin 8 are internally connected and connecting both to GND1 is recommended. Pin 9 and Pin 15 are internally connected and
connecting both to GND2 is recommended. In noisy environments, connecting output enables (Pin 7 for ADuM3401/ADuM3402 and
Pin 10 for all models) to an external logic high or low is recommended.
Table 11. ADuM3400 Pin Function Descriptions
Pin No.
1
2, 8
3
4
5
6
7
9, 15
10
Mnemonic
VDD1
GND1
VIA
VIB
VIC
VID
NC
GND2
VE2
11
12
13
14
16
VOD
VOC
VOB
VOA
VDD2
Description
Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V.
Ground 1. Ground Reference for Isolator Side 1.
Logic Input A.
Logic Input B.
Logic Input C.
Logic Input D.
No Connect.
Ground 2. Ground reference for Isolator Side 2.
Output Enable 2. Active high logic input. VOA, VOB, VOC, and VOD outputs are enabled when VE2 is high or disconnected.
VOA, VOB, VOC, and VOD outputs are disabled when VE2 is low. In noisy environments, connecting VE2 to an external logic
high or low is recommended.
Logic Output D.
Logic Output C.
Logic Output B.
Logic Output A.
Supply Voltage for Isolator Side 2, 2.7 V to 5.5 V.
Rev. 0 | Page 15 of 24
VDD1 1
16
VDD2
*GND1 2
15
GND2*
VIA 3
ADuM3401
14
VOA
VIB 4
TOP VIEW
(Not to Scale)
13
VOB
12
VOC
VOD 6
11
VID
VE1 7
10
VE2
*GND1 8
9
GND2*
VIC 5
NC = NO CONNECT
05983-006
ADuM3400/ADuM3401/ADuM3402
Figure 6. ADuM3401 Pin Configuration
*Pin 2 and Pin 8 are internally connected and connecting both to GND1 is recommended. Pin 9 and Pin 15 are internally connected and
connecting both to GND2 is recommended. In noisy environments, connecting output enables (Pin 7 for ADuM3401/ADuM3402 and
Pin 10 for all models) to an external logic high or low is recommended.
Table 12. ADuM3401 Pin Function Descriptions
Pin No.
1
2, 8
3
4
5
6
7
Mnemonic
VDD1
GND1
VIA
VIB
VIC
VOD
VE1
9, 15
10
GND2
VE2
11
12
13
14
16
VID
VOC
VOB
VOA
VDD2
Description
Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V.
Ground 1. Ground reference for Isolator Side 1.
Logic Input A.
Logic Input B.
Logic Input C.
Logic Output D.
Output Enable 1. Active high logic input. VOD output is enabled when VE1 is high or disconnected. VOD is disabled when
VE1 is low. In noisy environments, connecting VE1 to an external logic high or low is recommended.
Ground 2. Ground reference for isolator Side 2.
Output Enable 2. Active high logic input. VOA, VOB, and VOC outputs are enabled when VE2 is high or disconnected.
VOA, VOB, and VOC outputs are disabled when VE2 is low. In noisy environments, connecting VE2 to an external logic high
or low is recommended.
Logic Input D.
Logic Output C.
Logic Output B.
Logic Output A.
Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V.
Rev. 0 | Page 16 of 24
VDD1 1
16
VDD2
*GND1 2
15
GND2*
VIA 3
ADuM3402
14
VOA
VIB 4
TOP VIEW
(Not to Scale)
13
VOB
12
VIC
VOD 6
11
VID
VE1 7
10
VE2
*GND1 8
9
GND2*
VOC 5
NC = NO CONNECT
05983-007
ADuM3400/ADuM3401/ADuM3402
Figure 7. ADuM3402 Pin Configuration
*Pin 2 and Pin 8 are internally connected and connecting both to GND1 is recommended. Pin 9 and Pin 15 are internally connected and
connecting both to GND2 is recommended. In noisy environments, connecting output enables (Pin 7 for ADuM3401/ADuM3402 and
Pin 10 for all models) to an external logic high or low is recommended.
Table 13. ADuM3402 Pin Function Descriptions
Pin No.
1
2, 8
3
4
5
6
7
Mnemonic
VDD1
GND1
VIA
VIB
VOC
VOD
VE1
9, 15
10
GND2
VE2
11
12
13
14
16
VID
VIC
VOB
VOA
VDD2
Description
Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V.
Ground 1. Ground reference for Isolator Side 1.
Logic Input A.
Logic Input B.
Logic Output C.
Logic Output D.
Output Enable 1. Active high logic input. VOC and VOD outputs are enabled when VE1 is high or disconnected.
VOC and VOD outputs are disabled when VE1 is low. In noisy environments, connecting VE1 to an external logic high or
low is recommended.
Ground 2. Ground reference for isolator Side 2.
Output Enable 2. Active high logic input. VOA and VOB outputs are enabled when VE2 is high or disconnected.
VOA and VOB outputs are disabled when VE2 is low. In noisy environments, connecting VE2 to an external logic high or
low is recommended.
Logic Input D.
Logic Input C.
Logic Output B.
Logic Output A.
Supply Voltage for Isolator Side 2, 2.7 V to 5.5 V.
Rev. 0 | Page 17 of 24
ADuM3400/ADuM3401/ADuM3402
80
15
60
CURRENT (mA)
20
5V
10
3V
40
5V
3V
0
0
20
40
60
DATA RATE (Mbps)
80
100
0
0
20
80
15
60
10
40
60
DATA RATE (Mbps)
5
100
40
20
5V
5V
20
40
60
DATA RATE (Mbps)
80
100
05983-009
0
0
0
Figure 9. Typical Output Supply Current per Channel vs. Data Rate (No Load)
15
60
CURRENT (mA)
80
5V
40
60
DATA RATE (Mbps)
80
100
Figure 12. Typical ADuM3400 VDD2 Supply Current vs.
Data Rate for 5 V and 3 V Operation
20
10
20
05983-012
3V
3V
0
5
40
5V
20
0
0
20
40
60
DATA RATE (Mbps)
80
100
Figure 10. Typical Output Supply Current per Channel vs.
Data Rate (15 pF Output Load)
0
0
20
40
60
DATA RATE (Mbps)
80
Figure 13. Typical ADuM3401 VDD1 Supply Current vs.
Data Rate for 5 V and 3 V Operation
Rev. 0 | Page 18 of 24
100
05983-013
3V
3V
05983-010
CURRENT/CHANNEL (mA)
80
Figure 11. Typical ADuM3400 VDD1 Supply Current vs.
Data Rate for 5 V and 3 V Operation
CURRENT (mA)
CURRENT/CHANNEL (mA)
Figure 8. Typical Input Supply Current per Channel vs. Data Rate (No Load)
20
05983-011
20
5
05983-008
CURRENT/CHANNEL (mA)
TYPICAL PERFORMANCE CHARACTERISTICS
ADuM3400/ADuM3401/ADuM3402
40
80
PROPAGATION DELAY (ns)
CURRENT (mA)
60
40
5V
20
3V
35
30
5V
0
20
40
60
DATA RATE (Mbps)
80
100
Figure 14. Typical ADuM3401 VDD2 Supply Current vs.
Data Rate for 5 V and 3 V Operation
40
5V
20
3V
0
40
60
DATA RATE (Mbps)
80
100
05983-015
CURRENT (mA)
60
20
–25
0
25
50
TEMPERATURE (°C)
75
Figure 16. Propagation Delay vs. Temperature, C Grade
80
0
25
–50
Figure 15. Typical ADuM3402 VDD1 or VDD2 Supply Current vs.
Data Rate for 5 V and 3 V Operation
Rev. 0 | Page 19 of 24
100
05983-016
0
05983-014
3V
ADuM3400/ADuM3401/ADuM3402
APPLICATION INFORMATION
The ADuM340x digital isolator requires no external interface
circuitry for the logic interfaces. Power supply bypassing is
strongly recommended at the input and output supply pins (see
Figure 17). Bypass capacitors are most conveniently connected
between Pin 1 and Pin 2 for VDD1 and between Pin 15 and
Pin 16 for VDD2. The capacitor value should be between 0.01 μF
and 0.1 μF. The total lead length between both ends of the
capacitor and the input power supply pin should not exceed
20 mm. Bypassing between Pin 1 and Pin 8 and between Pin 9
and Pin 16 should also be considered unless the ground pair on
each package side is connected close to the package.
VDD2
GND2
VOA
VOB
VOC/IC
VOD/ID
VE2
GND2
PROPAGATION DELAY-RELATED PARAMETERS
Propagation delay is a parameter that describes the time it takes
a logic signal to propagate through a component. The propagation
delay to a logic low output can differ from the propagation
delay to a logic high.
INPUT (VIX)
50%
tPLH
OUTPUT (VOX)
Figure 17. Recommended Printed Circuit Board Layout
In applications involving high common-mode transients, care
should be taken to ensure that board coupling across the isolation
barrier is minimized. Furthermore, the board layout should be
designed such that any coupling that does occur equally affects
all pins on a given component side. Failure to ensure this could
cause voltage differentials between pins exceeding the device’s
Absolute Maximum Ratings, thereby leading to latch-up or
permanent damage.
50%
Pulse-width distortion is the maximum difference between
these two propagation delay values and is an indication of how
accurately the input signal’s timing is preserved.
Channel-to-channel matching refers to the maximum amount
the propagation delay differs between channels within a single
ADuM340x component.
Propagation delay skew refers to the maximum amount the
propagation delay differs between multiple ADuM340x
components operating under the same conditions.
DC CORRECTNESS AND MAGNETIC FIELD IMMUNITY
SYSTEM-LEVEL ESD CONSIDERATIONS AND
ENHANCEMENTS
System-level ESD reliability (for example, per IEC 61000-4-x) is
highly dependent on system design which varies widely by
application. The ADuM340x incorporate many enhancements
to make ESD reliability less dependent on system design. The
enhancements include:
• ESD protection cells added to all input/output interfaces.
• Key metal trace resistances reduced using wider geometry
and paralleling of lines with vias.
• The SCR effect inherent in CMOS devices minimized by use
of guarding and isolation technique between PMOS and
NMOS devices.
• Areas of high electric field concentration eliminated using
45° corners on metal traces.
• Supply pin overvoltage prevented with larger ESD clamps
between each supply pin and its respective ground.
tPHL
Figure 18. Propagation Delay Parameters
05983-017
VDD1
GND1
VIA
VIB
VIC/OC
VID/OD
VE1
GND1
While the ADuM340x improve system-level ESD reliability,
they are no substitute for a robust system-level design. See
Application Note AN-793 ESD/Latch-Up Considerations with
iCoupler Isolation Products for detailed recommendations on
board layout and system-level design.
05983-018
PC BOARD LAYOUT
Positive and negative logic transitions at the isolator input cause
narrow (~1 ns) pulses to be sent to the decoder via the transformer.
The decoder is bistable and is, therefore, either set or reset by
the pulses, indicating input logic transitions. In the absence of
logic transitions at the input for more than 2 μs, a periodic set
of refresh pulses indicative of the correct input state are sent to
ensure dc correctness at the output. If the decoder receives no
internal pulses of more than about 5 μs, the input side is
assumed to be unpowered or nonfunctional, in which case the
isolator output is forced to a default state (see Table 10) by the
watchdog timer circuit.
The limitation on the ADuM340x’s magnetic field immunity is
set by the condition in which induced voltage in the transformer’s
receiving coil is sufficiently large to either falsely set or reset the
decoder. The following analysis defines the conditions under
which this can occur. The 3 V operating condition of the
ADuM340x is examined because it represents the most
susceptible mode of operation.
Rev. 0 | Page 20 of 24
ADuM3400/ADuM3401/ADuM3402
The pulses at the transformer output have an amplitude greater
than 1.0 V. The decoder has a sensing threshold at about 0.5 V, thus
establishing a 0.5 V margin in which induced voltages can be
tolerated. The voltage induced across the receiving coil is given by
V = (−dβ/dt)∑∏rn2; n = 1, 2, … , N
where:
β is magnetic flux density (gauss).
N is the number of turns in the receiving coil.
The preceding magnetic flux density values correspond to
specific current magnitudes at given distances from the
ADuM340x transformers. Figure 20 expresses these allowable
current magnitudes as a function of frequency for selected
distances. As shown, the ADuM340x is extremely immune and
can be affected only by extremely large currents operated at
high frequency very close to the component. For the 1 MHz
example noted, one would have to place a 0.5 kA current 5 mm
away from the ADuM340x to affect the component’s operation.
1000
Given the geometry of the receiving coil in the ADuM340x and
an imposed requirement that the induced voltage be at most
50% of the 0.5 V margin at the decoder, a maximum allowable
magnetic field is calculated as shown in Figure 19.
10
DISTANCE = 1m
100
10
DISTANCE = 100mm
1
DISTANCE = 5mm
0.1
1
0.01
1k
10k
100k
1M
10M
MAGNETIC FIELD FREQUENCY (Hz)
0.1
100M
05983-020
MAXIMUM ALLOWABLE MAGNETIC FLUX
DENSITY (kgauss)
100
MAXIMUM ALLOWABLE CURRENT (kA)
rn is the radius of the nth turn in the receiving coil (cm).
Figure 20. Maximum Allowable Current
for Various Current-to-ADuM340x Spacings
0.001
1k
10k
100k
10M
1M
MAGNETIC FIELD FREQUENCY (Hz)
100M
05983-019
0.01
Figure 19. Maximum Allowable External Magnetic Flux Density
Note that at combinations of strong magnetic field and high
frequency, any loops formed by printed circuit board traces
could induce error voltages sufficiently large enough to trigger
the thresholds of succeeding circuitry. Care should be taken in
the layout of such traces to avoid this possibility.
For example, at a magnetic field frequency of 1 MHz, the
maximum allowable magnetic field of 0.2 kgauss induces a
voltage of 0.25 V at the receiving coil. This is about 50% of the
sensing threshold and does not cause a faulty output transition.
Similarly, if such an event were to occur during a transmitted
pulse (and was of the worst-case polarity), it would reduce the
received pulse from >1.0 V to 0.75 V—still well above the 0.5 V
sensing threshold of the decoder.
Rev. 0 | Page 21 of 24
ADuM3400/ADuM3401/ADuM3402
POWER CONSUMPTION
The supply current at a given channel of the ADuM340x
isolator is a function of the supply voltage, the channel’s data
rate, and the channel’s output load.
For each input channel, the supply current is given by
IDDI = IDDI (Q)
f ≤ 0.5 fr
IDDI = IDDI (D) × (2f − fr) + IDDI (Q)
f > 0.5 fr
For each output channel, the supply current is given by
IDDO = IDDO (Q)
f ≤ 0.5 fr
−3
IDDO = (IDDO (D) + (0.5 × 10 ) × CL × VDDO) × (2f − fr) + IDDO (Q)
f > 0.5 fr
where:
IDDI (D), IDDO (D) are the input and output dynamic supply currents
per channel (mA/Mbps).
CL is the output load capacitance (pF).
VDDO is the output supply voltage (V).
f is the input logic signal frequency (MHz); it is half of the input
data rate expressed in units of Mbps.
fr is the input stage refresh rate (Mbps).
IDDI (Q), IDDO (Q) are the specified input and output quiescent
supply currents (mA).
To calculate the total IDD1 and IDD2 supply current, the supply
currents for each input and output channel corresponding to
VDD1 and VDD2 are calculated and totaled. Figure 8 provides perchannel input supply current as a function of data rate. Figure 9
and Figure 10 provide per-channel supply output current as a
function of data rate for an unloaded output condition and for a
15 pF output condition, respectively. Figure 11 through Figure 15
provide total VDD1 and VDD2 supply current as a function of data
rate for ADuM3400/ADuM3401/ADuM3402 channel
configurations.
Rev. 0 | Page 22 of 24
ADuM3400/ADuM3401/ADuM3402
OUTLINE DIMENSIONS
10.50 (0.4134)
10.10 (0.3976)
9
16
7.60 (0.2992)
7.40 (0.2913)
8
1
1.27 (0.0500)
BSC
0.75 (0.0295)
× 45°
0.25 (0.0098)
2.65 (0.1043)
2.35 (0.0925)
0.30 (0.0118)
0.10 (0.0039)
COPLANARITY
0.10
10.65 (0.4193)
10.00 (0.3937)
0.51 (0.0201)
0.31 (0.0122)
SEATING
PLANE
8°
0.33 (0.0130) 0°
0.20 (0.0079)
1.27 (0.0500)
0.40 (0.0157)
COMPLIANT TO JEDEC STANDARDS MS-013-AA
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
Figure 21. 16-Lead Standard Small Outline Package [SOIC_W]
Wide Body (RW-16)
Dimensions shown in millimeters and (inches)
ORDERING GUIDE
Model
ADuM3400ARWZ 2, 3
ADuM3400BRWZ2, 3
ADuM3400CRWZ2, 3
ADuM3401ARWZ2, 3
ADuM3401BRWZ2, 3
ADuM3401CRWZ2, 3
ADuM3402ARWZ2, 3
ADuM3402BRWZ2, 3
ADuM3402CRWZ2, 3
Temperature Range (°C)
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
Number of
Inputs,
VDD1 Side
4
4
4
3
3
3
2
2
2
Number of
Inputs,
VDD2 Side
0
0
0
1
1
1
2
2
2
1
Maximum
Data Rate
(Mbps)
1
10
90
1
10
90
1
10
90
RW-16 = 16-lead wide body SOIC.
Tape and reel are available. The addition of an “-RL” suffix designates a 13” (1,000 units) tape and reel option.
3
Z = Pb-free part.
2
Rev. 0 | Page 23 of 24
Maximum
Propagation
Delay, 5 V (ns)
100
50
32
100
50
32
100
50
32
Maximum
Pulse-Width
Distortion (ns)
40
3
2
40
3
2
40
3
2
Package
Option 1
RW-16
RW-16
RW-16
RW-16
RW-16
RW-16
RW-16
RW-16
RW-16
ADuM3400/ADuM3401/ADuM3402
NOTES
©2006 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D05985-0-3/06(0)
Rev. 0 | Page 24 of 24