OPA2991IDSGR datasheet(21/78 Pages) TI

Part #	OPA2991IDSGR

Description	OPAx991 40-V Rail-to-Rail Input/Output, Low Offset Voltage, Low Noise Op Amp

PDF	78 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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21 / 78 page

7 Detailed Description

7.1 Overview

The OPAx991 family (OPA991, OPA2991, and OPA4991) is a new generation of 40-V general purpose

operational amplifiers.

These devices offer excellent DC precision and AC performance, including rail-to-rail input/output, low offset

(±125 µV, typ), low offset drift (±0.3 µV/°C, typ), and 4.5-MHz bandwidth.

Unique features such as differential and common-mode input-voltage range to the supply rail, high output current

(±75 mA), high slew rate (21 V/µs), and shutdown functionality make the OPAx991 a robust, high-performance

operational amplifier for high-voltage industrial applications.

7.2 Functional Block Diagram

40-V

Differential

MUX-Friendly

Front End

Slew

Boost

IN+

IN-

OUT

NCH Input

Stage

PCH Input

Stage

Output

Stage

Shutdown

Circuitry

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OPA991, OPA2991, OPA4991

SBOS969F – OCTOBER 2019 – REVISED JANUARY 2022

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Product Folder Links: OPA991 OPA2991 OPA4991

OPA2991IDSGR Datasheet(PDF) 21 Page - Texas Instruments