Reference

Current

V+

V

IN-

V

IN+

V

(Ground)

-

V

BIAS2

V

BIAS1

Class AB

Control

Circuitry

V

O

13

TLV314, TLV2314, TLV4314

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SBOS754A – MARCH 2016 – REVISED MARCH 2016

Product Folder Links: TLV314 TLV2314 TLV4314

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Copyright © 2016, Texas Instruments Incorporated

8 Detailed Description

8.1 Overview

The TLV314 is a family of low-power, rail-to-rail input and output operational amplifiers specifically designed for

portable applications. These devices operate from 1.8 V to 5.5 V, are unity-gain stable, and 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

TLV314 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 these devices ideal for driving

sampling analog-to-digital converters (ADCs).

The TLV314 features 3-MHz bandwidth and 1.5-V/

μs slew rate with only 150-μA supply current per channel,

providing good ac performance at very low power consumption. DC applications are also well served with a very

low input noise voltage of 14 nV/

√Hz at 1 kHz, low input bias current (0.2 pA), and an input offset voltage of

0.5 mV (typical).

8.2 Functional Block Diagram