A1

A2

PRE OUT

BUF IN

GND

OUT

IN

IN+

V+

10

INA270, INA271

SBOS381E – FEBRUARY 2007 – REVISED JANUARY 2018

www.ti.com

Product Folder Links: INA270 INA271

Submit Documentation Feedback

Copyright © 2007–2018, Texas Instruments Incorporated

8 Detailed Description

8.1 Overview

The INA270 and INA271 family of current-shunt monitors with voltage output can sense drops across current

shunts at common-mode voltages from –16 V to +80 V, independent of the supply voltage. The INA270 and

INA271 pinouts readily enable filtering.

The INA270 and INA271 are available with two output voltage scales: 14 V/V and 20 V/V. The 130-kHz

bandwidth simplifies use in current-control loops.

The INA270 and INA271 operate from a single +2.7-V to +18-V supply, drawing a maximum of 900 μA of supply

current. The devices are specified over the extended operating temperature range of –40°C to +125°C and are

offered in an SOIC-8 package.

8.2 Functional Block Diagram