PDS-1081E

Printed in U.S.A. August, 1997

OPA177

FEATURES

q LOW OFFSET VOLTAGE: 25

q LOW DRIFT: 0.3

q HIGH OPEN-LOOP GAIN: 130dB min

q LOW QUIESCENT CURRENT: 1.5mA typ

q REPLACES INDUSTRY-STANDARD OP

AMPS: OP-07, OP-77, OP-177, AD707,

ETC.

APPLICATIONS

q PRECISION INSTRUMENTATION

q DATA ACQUISITION

q TEST EQUIPMENT

q BRIDGE AMPLIFIER

q THERMOCOUPLE AMPLIFIER

Precision

OPERATIONAL AMPLIFIER

14k

Ω

500

Ω

Trim

8

V+

7

Trim

1

+In

3

–In

2

V–

4

25

Ω

30

Ω

V

6

O

20µA

500

Ω

DESCRIPTION

The OPA177 precision bipolar op amp feature very

low offset voltage and drift. Laser-trimmed offset,

drift and input bias current virtually eliminate the need

for costly external trimming. The high performance

and low cost make them ideally suited to a wide range

of precision instrumentation.

The low quiescent current of the OPA177 dramati-

cally reduce warm-up drift and errors due to thermo-

electric effects in input interconnections. It provides

an effective alternative to chopper-stabilized amplifi-

ers. The low noise of the OPA177 maintains accuracy.

OPA177 performance gradeouts are available. Pack-

aging

options

include

8-pin

plastic

DIP

and SO-8 surface-mount packages.

®

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/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

OPA177

OPA177

SBOS008