OPA197_16 Datasheet, PDF (19/39 Pages) Texas Instruments – 36-V, Precision, Rail-to-Rail Input/Output, Low Offset Voltage Operational Amplifiers

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7 Detailed Description
OPA197, OPA2197, OPA4197
SBOS737A – JANUARY 2016 – REVISED JULY 2016
7.1 Overview
The OPAx197 uses a patented two-temperature trim architecture to achieve a very low offset voltage of 250 µV
(max) and low voltage offset drift of 0.75 µV/°C (max) over the full specified temperature range. This level of
precision performance at wide supply voltages makes these amplifiers useful for high-impedance industrial
sensors, filters, and high-voltage data acquisition.
7.2 Functional Block Diagram
NCH Input
Stage
OPAx197
+IN
36-V
Differential
Front End
-IN
Slew
Boost
PCH Input
Stage
t
High
Capacitive Load
Compensation
Output
Stage
OUT
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Product Folder Links: OPA197 OPA2197 OPA4197