OPA2192 datasheet(23/51 Pages) TI

23 / 51 page

36-V

Differential

Front End

Slew

Boost

High

Capacitive Load

Compensation

e-trim

Package Level Trim

IN+

VOUT

OPAx192

NCH Input

Stage

PCH Input

Stage

Output

Stage

OPA192, OPA2192, OPA4192

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SBOS620D – DECEMBER 2013 – REVISED SEPTEMBER 2015

8 Detailed Description

8.1 Overview

The OPAx192 family of operational amplifiers use e-trim, a method of package-level trim for offset and offset

temperature drift implemented during the final steps of manufacturing after the plastic molding process. This

method minimizes the influence of inherent input transistor mismatch, as well as errors induced during package

molding. The trim communication occurs on the output pin of the standard pinout, and after the trim points are

set, further communication to the trim structure is permanently disabled. The Functional Block Diagram section

shows the simplified diagram of the OPA192 with e-trim.

Unlike previous e-trim op amps, the OPAx192 uses a patented two-temperature trim architecture to achieve a

very low offset voltage of 25 µV (max) and low voltage offset drift of 0.5 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.

8.2 Functional Block Diagram

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Product Folder Links: OPA192 OPA2192 OPA4192

OPA2192 Datasheet(PDF) 23 Page - Texas Instruments