1

SHC5320

®

SHC5320

FEATURES

q ACQUISITION TIME TO 0.01%: 1.5

q HOLD MODE SETTLING TIME: 350ns max

q DROOP RATE AT +25

q TTL COMPATIBLE

q FULL DIFFERENTIAL INPUTS

q INTERNAL HOLDING CAPACITOR

q TWO TEMPERATURE RANGES:

–40

–55

q PACKAGE OPTIONS: Ceramic and Plastic

DIP-14, SO-16

DESCRIPTION

The SHC5320 is a bipolar, monolithic, sample/hold

circuit designed for use in precision, high-speed, data-

acquisition applications.

The circuit employs an input transconductance ampli-

fier capable of providing large amounts of charging

current to the holding capacitor, thus enabling fast

acquisition times. It also incorporates a low leakage

analog switch and an output integrating amplifier with

input bias current optimized to assure low droop rates.

Since the analog switch always drives into a load at

virtual ground, charge injection into the holding ca-

pacitor is constant over the entire input voltage range.

As a result, the charge offset (pedestal voltage) result-

ing from this charge injection can be adjusted to zero

by use of the offset adjustment capability. The device

includes an internal holding capacitor to simplify ease

of application; however, provision is also made to add

additional external capacitance to improve the output

voltage droop rate.

The SHC5320 is manufactured using a dielectric iso-

lation process which minimizes stray capacitance (en-

abling higher-speed operation), and eliminates latch-

up associated with substrate SCRs. The SHC5320KH,

KP, and KU feature fully specified operation over the

extended industrial temperature range of –40

°C to

+85

°C, while the SHC5320SH operates over the tem-

perature range of –55

°C to +125°C. The device re-

quires

±15V supplies for operation, and is packaged in

a reliable 14-pin ceramic or plastic dual-in-line pack-

age, as well as a 16-pin surface mount plastic package.

FPO

APPLICATIONS

q PRECISION DATA ACQUISITION

SYSTEMS

q DIGITAL-TO-ANALOG CONVERTER

DEGLITCHER

q AUTO ZERO CIRCUITS

q PEAK DETECTORS

100pF

Output

Bandwidth

Control

Reference

Common

+

–

External

Hold

Capacitor

Offset

Adjust

–Input

+Input

Mode

Control

High-Speed, Bipolar, Monolithic

SAMPLE/HOLD AMPLIFIER

© 1985 Burr-Brown Corporation

PDS-585G

Printed in U.S.A. April, 2000

®

For most current data sheet and other product

information, visit www.burr-brown.com

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111

Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132