HS-2420RH
®
Data Sheet
February 2003
FN3554.3
Radiation Hardened Fast Sample and Hold
Features
The HS-2420RH is a radiation hardened monolithic circuit
consisting of a high performance operational amplifier with
its output in series with an ultra-low leakage analog switch
and MOSFET input unity gain amplifier.
• Electrically Screened to SMD # 5962-95669
• QML Qualified per MIL-PRF-38535 Requirements
• Maximum Acquisition Time
- 10V Step to 0.1% . . . . . . . . . . . . . . . . . . . . . . . . . . 4µs
- 10V Step to 0.01% . . . . . . . . . . . . . . . . . . . . . . . . . 6µs
With an external hold capacitor connected to the switch output,
a versatile, high performance sample-and-hold or track-and-
hold circuit is formed. When the switch is closed, the device
behaves as an operation amplifier, and any of the standard op
amp feedback networks may be connected around the device
to control gain, frequency response, etc. When the switch is
opened the output will remain at its last level.
• Maximum Drift Current. . . . . . . . . . . . . . . . . . . . . . . 10nA
(Maximum Over Temperature)
• TTL Compatible Control Input
• Power Supply Rejection . . . . . . . . . . . . . . . . . . . . . ≥ 80dB
• Total Dose . . . . . . . . . . . . . . . . . . . . . 100 krad(Si) (Max)
• No Latch-Up
Performance as a sample-and-hold compares very favorably
with other monolithic, hybrid, modular, and discrete circuits.
Accuracy to better than 0.01% is achievable over the
temperature range. Fast acquisition is coupled with superior
droop characteristics, even at high temperatures. High slew
rate, wide bandwidth, and low acquisition time produce
excellent dynamic characteristics. The ability to operate at
gains greater than 1 frequently eliminates the need for
external scaling amplifiers.
Applications
• Data Acquisition Systems
• D to A Deglitcher
• Auto Zero Systems
• Peak Detector
The device may also be used as a versatile operational
amplifier with a gated output for applications such as analog
switches, peak holding circuits, etc.
• Gated Op Amp
Ordering Information
Specifications for Rad Hard QML devices are controlled
by the Defense Supply Center in Columbus (DSCC). The
SMD numbers listed here must be used when ordering.
INTERNAL
MKT. NUMBER
TEMP. RANGE
o
ORDERING NUMBER
( C)
5962R9566901VCC
HS1B-2420RH-Q
-55 to 125
Detailed Electrical Specifications for these devices are
contained in SMD 5962-95669. A “hot-link” is provided
on our website for downloading.
Functional Diagram
OFFSET
ADJUST
Pinout
V+
5
3
4
14 LEAD METAL-SEALED SIDE-BRAZED CERAMIC DIP
MIL-STD-1835, CDIP2-T14
7
1
-
- INPUT
+ INPUT
TOP VIEW
OUTPUT
-
+
+
2
SAMPLE/HOLD
CONTROL
1
2
3
4
5
6
7
14
13
12
11
10
9
IN-
HS-2420RH
14
IN+
OFFSET ADJUST
OFFSET ADJUST
V-
GND
SAMPLE/
HOLD
CONTROL
NC
13
GND V-
5
11
HOLD
CAPACITOR
HOLD CAPACITOR
NC
V+
NC
8
NC
OUTPUT
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003. All Rights Reserved
1
All other trademarks mentioned are the property of their respective owners.
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