GM1

+IN

-IN

CHOP1

CHOP2

Notch

Filter

GM_FF

GM2

GM3

C2

C1

OUT

V+

V-

OPA180, OPA2180, OPA4180

www.ti.com

SBOS584D – NOVEMBER 2011 – REVISED MAY 2014

8 Detailed Description

8.1 Overview

The OPAx180 family of operational amplifiers combine precision offset and drift with excellent overall

performance, making them ideal for many precision applications. The precision offset drift of only 0.1 µV/°C

provides stability over the entire temperature range. In addition, the devices offer excellent overall performance

supplies require decoupling capacitors close to the device pins. In most cases, 0.1-µF capacitors are adequate.

8.2 Functional Block Diagram

8.3 Feature Description

8.3.1 Operating Characteristics

The OPAx180 family of amplifiers is specified for operation from 4 V to 36 V (±2 V to ±18 V). Many of the

specifications apply from –40°C to 105°C. Parameters that can exhibit significant variance with regard to

operating voltage or temperature are presented in the Typical Characteristics.

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Product Folder Links: OPA180 OPA2180 OPA4180