+

–

VI

+

RG

RS

RF

IIB–

IIB+

F

F

IO

OO

S

IB

F

IB

G

G

R

R

V

= V

1 +

± I + R

1 +

± I

R

-

R

R

æ

ö

æ

ö

æ

ö

æ

ö

ç

÷

ç

÷

ç

÷

ç

÷

è

ø

è

ø

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ø

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PMOS

Input

Stage

NMOS

Input

Stage

Output

Stage

OUT

+IN

-IN

TLV27L2-Q1

www.ti.com

SLOS922A – SEPTEMBER 2015 – REVISED DECEMBER 2015

8 Detailed Description

8.1 Overview

The TLV27L2-Q1 device is a micropower, rail-to-rail output, operational amplifier. This device operates from 2.7

V to 16 V, is unity-gain stable, and is 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 the negative rail and allows the TLV27L2-Q1 device to be used in virtually

any single-supply application from 2.7 V to 16 V. The typical supply current of 7 µA makes the TLV27L2-Q1

device an excellent choice for battery operated systems.

8.2 Functional Block Diagram

8.3 Feature Description

8.3.1 Offset Voltage

the corresponding gains. Use the schematic and formula in Figure 25 to calculate the output offset voltage.

Figure 25. Output Offset Voltage Model

8.4 Device Functional Modes

The TLV27L2-Q1 device is powered on when the supply is connected. The device can be operated as a single-

supply operational amplifier or a dual-supply amplifier, depending on the application. The TLV27L2-Q1 device

operates from power supplies as low as 2.7 V or as high as 16 V.

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