GM1

+IN

-IN

CHOP1

CHOP2

Notch

Filter

GM_FF

GM2

GM3

C2

C1

OUT

Copyright © 2016, Texas Instruments Incorporated

13

OPA317-Q1, OPA2317-Q1, OPA4317-Q1

www.ti.com

SLOS914 – JULY 2016

Product Folder Links: OPA317-Q1 OPA2317-Q1 OPA4317-Q1

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Copyright © 2016, Texas Instruments Incorporated

8 Detailed Description

8.1 Overview

The OPA317-Q1 is a family of low-power, rail-to-rail input and output operational amplifiers. These devices

operate from 1.8 V to 5.5 V, are unity-gain stable, and are suitable for a wide range of general-purpose

applications. The class AB output stage is capable of driving

≤ 10-kΩ loads connected to any point between V+

and ground. The input common-mode voltage range includes both rails and allows the OPA317 series to be used

in virtually any single-supply application. Rail-to-rail input and output swing significantly increases dynamic range,

especially in low-supply applications, and makes them ideal for driving sampling analog-to-digital converters

(ADCs).

8.2 Functional Block Diagram

8.3 Feature Description

8.3.1 Operating Voltage

The OPA317-Q1 series of operational amplifiers can be used with single or dual supplies from an operating

CAUTION

Supply voltages greater than 7 V can permanently damage the device.

See the Absolute Maximum Ratings table. Key parameters that vary over the supply voltage or temperature

range are shown in the Typical Characteristics section.