7 Detailed Description

7.1 Overview

The OPAx328 family features high-speed, precision amplifiers that make this op amp family an excellent

choice for driving high-resolution analog-to-digital converters (ADCs). Low output impedance with flat frequency

characteristics and zero-crossover distortion circuitry enable high linearity over the full input common-mode

range, achieving true rail-to-rail input from a 2.2-V to 5.5-V single supply.

7.2 Functional Block Diagram

Σ

e-trim™

POR

V+

V

IN

+IN

OPAx328

Charge

pump

PMOS

input

pair

OUT

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OPA2328

SBOS957A – FEBRUARY 2022 – REVISED JUNE 2022

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Product Folder Links: OPA2328