Low Power, High Precision
Operational Amplifier
OP97
Low supply current: 600 μA maximum
OP07 type performance
Offset voltage: 20 μV maximum
Offset voltage drift: 0.6 μV/°C maximum
Very low bias current
25°C: 100 pA maximum
−55°C to +125°C: 250 pA maximum
High common-mode rejection: 114 dB minimum
Extended industrial temperature range: −40°C to +85°C
PIN CONNECTIONS
NULL 1
OP97
8
NULL
–IN 2
7
V+
+IN 3
6
OUT
V– 4
5
OVER
COMP
00299-001
FEATURES
Figure 1. 8-Lead PDIP (P Suffix)
8-Lead SOIC (S Suffix)
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.
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 minimal
power requirements of the OP97 combine to make the OP97 a
preferred device for portable and battery-powered instruments.
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-andhold circuits that must operate at elevated temperatures.
The OP97 conforms to the OP07 pinout, with the null potentiometer connected between Pin 1 and Pin 8 with the wiper to
V+. The OP97 upgrades circuit designs using AD725, OP05,
OP07, OP12, and PM1012 type amplifiers. It may replace 741type amplifiers in circuits without nulling or where the nulling
circuitry has been removed.
Rev. G
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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. Specifications subject to change without notice. No
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