REV. D

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties that

may result from its use. No license is granted by implication or otherwise

under any patent or patent rights of Analog Devices.

a

OP97

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

www.analog.com

Fax: 781/326-8703

© Analog Devices, Inc., 2002

Low-Power, High-Precision

Operational Amplifier

PIN CONNECTIONS

Epoxy Mini-DIP (P Suffix)

8-Pin Cerdip

(Z Suffix)

8-Pin SO (S Suffix)

1

2

3

4

8

7

6

5

OP97

NULL

OVER

COMP

OUT

V+

NULL

–IN

+IN

V–

FEATURES

Low Supply Current: 600

A Max

OP07 Type Performance

Offset Voltage: 20

V Max

Offset Voltage Drift: 0.6

V/ C Max

Very Low Bias Current

25 C: 100 pA Max

–55 C to +125 C: 250 pA Max

High Common-Mode Rejection: 114 dB Min

Extended Industrial Temperature Range: –40 C to +85 C

Available In Die Form

GENERAL DESCRIPTION

The OP97 is a low power alternative to the industry-standard

OP07 precision amplifier. The OP97 maintains the standards of

performance set by the OP07 while utilizing only 600

µA supply

current, less than 1/6 that of an OP07. Offset voltage is an

ultralow 25

µV, and drift over temperature is below 0.6 µV/°C.

External offset trimming is not required in the majority of circuits.

Improvements have been made over OP07 specifications in

several areas. Notable is bias current, which remains below

250 pA over the full military temperature range. The OP97 is

ideal for use in precision long-term integrators or sample-and-

hold circuits that must operate at elevated temperatures.

Common-mode rejection and power supply rejection are also

improved with the OP97, at 114 dB minimum over wider

ranges of common-mode or supply voltage. Outstanding

PSR, a supply range specified from

±2.25 V to ±20 V and the

OP97’s minimal power requirements combine to make the

OP97 a preferred device for portable and battery-powered

instruments.

The OP97 conforms to the OP07 pinout, with the null potenti-

ometer connected between Pins 1 and 8 with the wiper to V+.

The OP97 will upgrade circuit designs using 725, OP05, OP07,

OP12, and 1012 type amplifiers. It may replace 741-type ampli-

fiers in circuits without nulling or where the nulling circuitry has

been removed.