Next Generation OP07 Ultralow

Offset Voltage Operational Amplifier

Data Sheet

OP77

Rev. G

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FEATURES

Outstanding gain linearity

Ultrahigh gain, 5000 V/mV min

Low VOS over temperature, 55 μV max

TCVOS, 0.3 μV/°C max

High PSRR, 3 μV/V max

Low power consumption, 60 mW max

Available in die form

PIN CONNECTIONS

VOS TRIM 1

–IN 2

+IN 3

V– 4

VOS TRIM

8

V+

7

OUT

6

NC

5

NC = NO CONNECT

OP77

TOP VIEW

(Not to Scale)

Figure 1. 8-Pin Hermetic

CERDIP_Q-8 (Z Suffix)

VOS TRIM

VOS TRIM

V+

4V– (CASE)

+IN

NC

NC = NO CONNECT

–IN

OUT

OP77

TOP VIEW

(Not to Scale)

7

3

1

5

6

2

8

4

Figure 2. TO-99

(J Suffix)

GENERAL DESCRIPTION

The OP77 has outstanding gain of 10,000,000 or more that is

maintained over the full 10 V output range. This gain-linearity

eliminates incorrectable system nonlinearities common in

previous monolithic op amps and provides superior performance

in high closed-loop gain applications. Low initial VOS drift and

rapid stabilization time, combined with only 50 mW of power

consumption, are significant improvements over previous

designs. These characteristics, plus the TCVOS of 0.3 μV/°C

maximum and the low VOS of 25 μV maximum, eliminates

the need for VOS adjustment and increases system accuracy over

temperature.

A PSRR of 3 μV/V (110 dB) and CMRR of 1.0 μV/V maximum

virtually eliminate errors caused by power supply drifts and

common-mode signals. This combination of outstanding

characteristics makes the OP77 ideally suited for high resolution

instrumentation and other tight error budget systems.