SHM-14 - Datel

SHM-14
14-Bit Linear Sample-Hold Amplifier
GENERAL DESCRIPTION
The SHM-14 is an extremely high-speed and accurate sample-and-hold amplifier
designed for fast data acquisition applications. The SHM-14 is accurate (±0.5 LSB to
14-bit over the full military temperature range) and is very fast (25ns and 35ns acquisition
times to accuracies of 12 and 14 bits respectively). With this high performance and a
full power bandwidth of 60MHz, the SHM-14 is an ideal device for high resolution data
acquisition systems.
Careful design optimizes the device for accuracy and speed over the full military
temperature range. Operating from ±5V supplies, the SHM-14 consumes only 275mW
of power and has high drive capability. The SHM-14 is available with solder dipped leads
in both military and commercial temperature ranges. RoHS compliant versions are also
available if required. The device is packaged in a 16-pin hermetically sealed ceramic LCC
package.
FEATURES
„ Fast acquisition time:
10ns to ±0.1%
25ns to ±0.012%
35ns to ±0.003%
„ ±0.0012% Nonlinearity
INPUT/OUTPUT CONNECTIONS
„ 65μV rms output noise
PIN
FUNCTION
PIN
FUNCTION
„ 60MHz full power bandwidth
1
–5V SUPPLY
16
SAMPLE/HOLD
„ –80dB feedthrough
2
GROUND
15
SAMPLE/HOLD
„ 1ps Aperture jitter
3
ANALOG INPUT
14
+5V SUPPLY
„ Low cost & power (275mW power dissipation)
4
GROUND
13
NC
„ Packaged in a hermetic ceramic LCC package
(0.420 X 0.420 inches)
„ Both full 883 and LM/QL versions available
5
–5V SUPPLY
12
GROUND
6
GROUND
11
+5V SUPPLY
7
GROUND
10
+5V SUPPLY
„ RoHS compliant version available
8
–5V SUPPLY
9
ANALOG OUTPUT
–5V SUPPLY
+5V SUPPLY
10, 11, 14
1, 5, 8
ANALOG INPUT
3
+1
SAMPLE/HOLD
SAMPLE/HOLD
15
9
+1
CH
ANALOG
OUTPUT
SWITCH
DRIVE
16
13
DO NOT CONNECT
2, 4, 6, 7, 12
GROUND
Note: CLCC Package Pinouts Shown
Figure 1. SHM-14 Functional Block Diagram
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
• Tel: (508) 339-3000
•
www.datel.com
•
e-mail: [email protected]
MDA_SHM-14.A04 Page 1 of 5
SHM-14
14-Bit Linear Sample-Hold Amplifier
ABSOLUTE MAXIMUM RATINGS
PARAMETERS
+5V Supply
–5V Supply
Analog Input
LIMITS
0 to +6
0 to –6
+5V Supply –1
–5V Supply +1
Continuous Output Current
±50
Digital Inputs
<Supply Voltages
Junction Temperature
+175
Lead Temperature (10 seconds)
+300
Output shorted to any supply will cause permanent damage.
UNITS
Volts
Volts
Volts
Volts
mA
Volts
°C
°C
FUNCTIONAL SPECIFICATIONS
(Apply over the 0°C to +70°C operating temperature range and ±5V nominal supplies, unless
specified.)
INPUTS
Input Voltage Range
Input Impedance (internal termination)
Digitals Inputs
Digital Input Voltage Range
Differential Signal Amplitude
Input Bias Current
OUTPUTS
Output Voltage Range
Output Current
Output Impedance (dc)
PERFORMANCE
Nonlinearity (±1V)
+25°C
0°C to +70°C
–55 to +125°C
Sample Mode Offset
+25°C
0°C to +70°C
–55 to +125°C
Pedestal
+25°C
0°C to +70°C
–55 to +125°C
Gain
Gain Drift (±1V), +25°C
0°C to +70°C
–55 to +125°C
Aperture Delay
0°C to +70°C
–55 to +125°C
Aperture Jitter
0°C to +70°C
–55 to +125°C
Harmonic Distortion (±1V)
dc to 1MHz
dc to 10MHz
+25°C
0°C to +70°C
–55 to +125°C
Acquisition Time (±0.012%, ±2V)
0°C to +70°C
–55 to +125°C
Acquisition Time (±0.024%, ±2V)
0°C to +70°C
MIN.
–2
300
TYP.
—
400
MAX.
+2
UNITS
Volts
Ω
–5
–200
–150
—
—
–5
+5
—
+50
Volts
mV
μA
–2
±30
—
—
—
0.3
+2
—
1
Volts
mA
Ω
—
—
—
±0.0012
—
—
±0.002
—
±0.003
%
%
%
—
—
—
±1
—
—
—
±5
±10
mV
mV
mV
—
—
—
±3
—
—
—
±40
±40
mV
mV
mV
—
+0.998
+0.996
+1.00
—
—
—
+1.002
+1.004
V/V
V/V
V/V
—
—
2
2
—
—
ns
ns
—
—
1
1
—
—
ps rms
ps rms
—
–77
—
dB
—
—
—
–65
—
—
—
–58
–55
dB
dB
dB
—
—
25
35
—
—
ns
ns
—
20
35
ns
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
–55 to +125°C
PERFORMANCE (CONT.)
Acquisition Time (±0.05%, ±2V)
0°C to +70°C
–55 to +125°C
Acquisition Time (±0.1%, ±2V)
0°C to +70°C
–55 to +125°C
Hold Mode Settling (±0.012%)
0°C to +70°C
–55 to +125°C
Hold Mode Settling (±0.024%)
0°C to +70°C
–55 to +125°C
Hold Mode Settling (±0.05%)
0°C to +70°C
–55 to +125°C
Hold Mode Settling (±0.1%)
0°C to +70°C
–55 to +125°C
Slew Rate
Full Power Bandwidth (±1V)
Small Signal Bandwidth
Output Noise, Hold Mode
Feedthrough (2V Step)
Droop Rate
+25°C
0°C to +70°C
–55 to +125°C
POWER SUPPLY REQUIREMENTS
Power Supply Range
+5V Supply
–5V Supply
Power Supply Current (no load)
+5V Supply
0°C to +70°C
–55 to +125°C
–5V Supply
0°C to +70°C
–55 to +125°C
Power Dissipation
0°C to +70°C
–55 to +125°C
Power Supply Rejection Ratio
ENVIRONMENTAL
Operating Temp. Range, case
SHM-14LC
SHM-14LM
Storage Temperature Range
Package Type
SHM-14LC
SHM-14LM
• Tel: (508) 339-3000
•
www.datel.com
•
—
MIN.
25
TYP.
40
MAX.
ns
UNITS
—
—
19
20
30
35
ns
ns
—
—
10
10
16
19
ns
ns
—
—
12
15
—
—
ns
ns
—
—
7
7
18
18
ns
ns
—
—
6
6
16
16
ns
ns
—
—
±500
45
50
—
—
5
5
±600
60
65
65
–80
12
12
—
—
—
—
—
ns
ns
V/μs
MHz
MHz
μVrms
dB
—
—
—
±2
±2
±2
±6
±10
±15
mV/μs
mV/μs
mV/μs
+4.5
–5.5
+5
–5
+5.5
–4.5
Volts
Volts
—
—
+30
+30
+50
+55
mA
mA
—
—
–25
–25
–35
–40
mA
mA
—
—
40
275
275
60
425
475
—
mW
mW
dB
0
–55
–65
—
—
—
+70
+125
+150
°C
°C
°C
CLCC
CLCC
e-mail: [email protected]
MDA_SHM-14.A04 Page 2 of 5
SHM-14
14-Bit Linear Sample-Hold Amplifier
GROUNDING AND LAYOUT
For best performance, controlled impedance transmission line techniques, such as
microstrip, should be used. Mount all components as close to the required pins as
possible. It is strongly recommended that the SHM-14 not be socket-mounted.
Obtaining fully specified performance from the SHM-14 requires careful attention to
pc-board layout and power supply decoupling.
For optimal performance, tie all grounds directly to a large analog ground plane beneath
and around the package. Bypass all power supplies to ground with 10μF tantalum
capacitors in parallel with 0.1μF ceramic capacitors.
Locate the bypass capacitors as close to the unit as possible.
SHM-14S
13
2, 4, 6, 7, 12
+
Figure 2. SHM-14 Simplified Connection Diagram
-0.8 V
SAMPLE
HOLD
HOLD
-1.8 V
-0.8 V
SAMPLE
SAMPLE
HOLD
-1.8 V
+1 V
Acquisition
Time to
±0.024%
ANALOG
INPUT
-1 V
20ns typ.
+1 V
7ns typ.
ANALOG
OUTPUT
-1 V
Track-to-hold Settling
to ±0.024%
20ns typ.
Figure 3. SHM-14 Control and Timing
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
7ns typ.
Feedthrough -80dB
• Tel: (508) 339-3000
•
www.datel.com
•
e-mail: [email protected]
MDA_SHM-14.A04 Page 3 of 5
SHM-14
14-Bit Linear Sample-Hold Amplifier
CLCC Package
0.065 ±.007
Top View
.025 ±.003
0.066 ±.010
.420 sq + .010 /-.005
Side View
.265 sq. ±.006
R. .0075 typ.
8
9
.040 typ.
Orientation
indicator
PIN 1
16
(1.02)
.020 typ.
.070 +.010 / -.005
Bottom View
Recommended LCC Pad Layout
0.040"
0.020"
0.024"
0.100"
0.530"
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
• Tel: (508) 339-3000
•
www.datel.com
•
e-mail: [email protected]
MDA_SHM-14.A04 Page 4 of 5
SHM-14
14-Bit Linear Sample-Hold Amplifier
Recommended Soldering Guidelines
SOLDERING GUIDELINES
DATEL recommends the specifications below when installing these converters. These specifications vary depending on the solder type. Exceeding
these specifications may cause damage to the product. Your production
environment may differ therefore please thoroughly review these guidelines
with your process engineers.
RECOMMENDED LEAD-FREE SOLDER REFLOW PROFILE
REFLOW SOLDER OPERATIONS FOR SURFACE-MOUNT PRODUCTS (SMT)
For Sn/Ag/Cu based solders:
Preheat Temperature
Less than 1 ºC. per second
Time over Liquidus
45 to 75 seconds
Maximum Peak Temperature
260 ºC.
Cooling Rate
Less than 3 ºC. per second
For Sn/Pb based solders:
Preheat Temperature
Less than 1 ºC. per second
Time over Liquidus
60 to 75 seconds
Maximum Peak Temperature
235 ºC.
Cooling Rate
Less than 3 ºC. per second
PRODUCT ORDERING INFORMATION
MODEL NUMBER
TEMPERATURE RANGE
PACKAGE
ROHS
SHM-14LC
0°C to +70°C
16-PIN LCC
No
SHM-14LM
-55°C to +125°C
16-PIN LCC
No
SHM-14/883
-55°C to +125°C
16-PIN LCC
No
SHM-14LC-C
0°C to +70°C
16-PIN LCC
Yes
SHM-14LM-C
-55°C to +125°C
16-PIN LCC
Yes
Please contact Datel if you require a special or custom solution derived from this product.
DATEL is a registered trademark of DATEL, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
DATEL, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information
contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of
licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice.
ITAR and ISO 9001/14001 REGISTERED
© 2015 DATEL, Inc.
www.datel.com • e-mail: [email protected]
MDA_SHM-14.A04 Page 5 of 5