INA190 datasheet(13/37 Pages) TI

Part #	INA190

Description	INA190-EP Bidirectional, Low-Power, Zero-Drift, Wide Dynamic Range, Precision Current Sense Amp With Enable

PDF	37 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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13 / 37 page

7 Detailed Description

7.1 Overview

The INA190-EP is a low bias current, low offset, 40-V common-mode, current-sensing amplifier with an enable

pin. The INA190-EP is a specially designed, current-sensing amplifier that accurately measures voltages

developed across current-sensing resistors on common-mode voltages that far exceed the supply voltage.

Current is measured on input voltage rails as high as 40 V at VIN+ and VIN–, with a supply voltage, VS, as low as

1.7 V. When disabled, the output goes to a high-impedance state, and the supply current draw is reduced to less

than 0.1 µA. The INA190-EP is intended for use in both low-side and high-side current-sensing configurations

where high accuracy and low current consumption are required.

7.2 Functional Block Diagram

IN±

IN+

GND

OUT

REF

ENABLE

INA190-EP

www.ti.com

INA190-EP

SBOSA74 – MAY 2022

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INA190 Datasheet(PDF) 13 Page - Texas Instruments