®
®
SHM-14
Ultra-Fast, 14-Bit Linear
Monolithic Sample-Hold Amplifiers
IN N O VA T IO N a n d E X C E L L E N C E
FEATURES
•
Fast acquisition time:
10ns to ±0.1%
20ns to ±0.024%
25ns to ±0.012%
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±0.0012% Nonlinearity
•
65µV rms output noise
•
250MHz small signal bandwidth
•
70MHz full power bandwidth
•
–80dB feedthrough
•
1ps Aperture jitter
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250mW power dissipation
•
Low cost
INPUT/OUTPUT CONNECTIONS — SOIC
PIN
1
2
3
4
5
6
7
8
FUNCTION
–5V SUPPLY
DO NOT CONNECT
ANALOG INPUT
DO NOT CONNECT
–5V SUPPLY
DO NOT CONNECT
DO NOT CONNECT
–5V SUPPLY
PIN
16
15
14
13
12
11
10
9
FUNCTION
SAMPLE/HOLD
SAMPLE/HOLD
+5V SUPPLY
EXT. CAPACITOR
GROUND
+5V SUPPLY
+5V SUPPLY
ANALOG OUTPUT
GENERAL DESCRIPTION
The SHM-14 is an extremely high-speed and accurate
monolithic sample-and-hold amplifier designed for fast data
acquisition applications. The SHM-14 is accurate (±0.5 LSB to
14-bits over the full military temperature range) and is very fast
(10ns and 20ns acquisition times to accuracies of 10 and 12
bits respectively). With this high performance and a full power
bandwidth of 70MHz, the SHM-14 is an ideal device for driving
flash and high-resolution subranging A/D converters.
A careful design optimizes the device for accuracy and speed
over the full military temperature range. The droop rate is a low
±2mV/µs and can be further reduced by adding an optional
external hold capacitor. The 30mA output current and
guaranteed specifications for a 100Ω load provide high drive
capability. Operating from ± 5V supplies, the SHM-14
consumes only 250mW of power.
The SHM-14 is built using a fast complementary bipolar
process. The device is available in both military and industrial
temperature ranges. The SHM-14 is packaged in a 16-pin
plastic SOIC or in a 20-pin ceramic LCC.
INPUT/OUTPUT CONNECTIONS — CLCC
PIN
1
2
3
4
5
6
7
8
9
10
FUNCTION
NOT CONNECTED
–5V SUPPLY
NOT CONNECTED
ANALOG INPUT
NOT CONNECTED
DO NOT CONNECT
–5V SUPPLY
DO NOT CONNECT
DO NOT CONNECT
–5V SUPPLY
PIN
20
19
18
17
16
15
14
13
12
11
FUNCTION
NOT CONNECTED
SAMPLE/HOLD
SAMPLE/HOLD
+5V SUPPLY
NOT CONNECTED
EXT. CAPACITOR
GROUND
+5V SUPPLY
+5V SUPPLY
ANALOG OUTPUT
–5V SUPPLY
1, 5, 8
EXTERNAL HOLD
CAPACITOR
13
+5V SUPPLY
10, 11, 14
ANALOG INPUT
3
+1
C
H
15pF
+1
9
ANALOG
OUTPUT
SAMPLE/HOLD
SAMPLE/HOLD
15
16
SWITCH
DRIVE
2, 4, 6, 7
DO NOT CONNECT
12
Note: SOIC Package Pinouts Shown
GROUND
Figure 1. SHM-14 Functional Block Diagram
DATEL, Inc., 11 Cabot Boulevard, Mansfield, MA 02048-1151 (U.S.A.)
•
Tel: (508) 339-3000 Fax: (508) 339-6356
•
For immediate assistance (800) 233-2765
MURATA-PS [ MURATA POWER SOLUTIONS INC. ]
