PIN CONNECTIONS

REV. B

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a

Ultraprecision

Operational Amplifier

OP177

© Analog Devices, Inc., 1995

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

Tel: 617/329-4700

Fax: 617/326-8703

FEATURES

Ultralow Offset Voltage:

V max

–55 C

≤ T

V max

Outstanding Offset Voltage Drift: 0.1

V/ C max

Excellent Open-Loop Gain and Gain Linearity:

12 V/ V typ

CMRR: 130 dB min

PSRR: 120 dB min

Low Supply Current: 2.0 mA max

Fits Industry Standard Precision Op Amp Sockets

(OP07/OP77)

GENERAL DESCRIPTION

The OP177 features the highest precision performance of any

op amp currently available. Offset voltage of the OP177 is only

10

µV max at room temperature and 20 µV max over the full

military temperature range of –55

°C to +125°C. The ultralow

temperature.

The OP177’s open-loop gain of 12 V/

µV is maintained over the

full

±10 V output range. CMRR of 130 dB min, PSRR of

120 dB min, and maximum supply current of 2 mA are just a

few examples of the excellent performance of this operational

amplifier. The OP177’s combination of outstanding specifications

insure accurate performance in high closed-loop gain applications.

This low noise bipolar input op amp is also a cost effective

alternative to chopper-stabilized amplifiers. The OP177 provides

chopper-type performance without the usual problems of high

noise, low frequency chopper spikes, large physical size, limited

common-mode input voltage range, and bulky external storage

capacitors.

The OP177 is offered in both the –55

°C to +125°C military,

and the –40

°C to +85°C extended industrial temperature

ranges. This product is available in 8-pin ceramic and epoxy

DIPs, as well as the space saving 8-pin Small-Outline (SO) and

the Leadless Chip Carrier (LCC) packages.

Figure 1. Simplified Schematic

Epoxy Mini-DIP

(P Suffix)

8-Pin Hermetic DIP

(Z-Suffix)

8-Pin SO

(S-Suffix)

NC = NO CONNECT

OP177BRC/883

LCC (RC Suffix)

NC = NO CONNECT