INA191 - Ultra-Precise Current Sense Amplifier

Texas Instruments

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Datasheet Details

Part number	INA191
Manufacturer	Texas Instruments
File Size	2.38 MB
Description	Ultra-Precise Current Sense Amplifier
Datasheet	INA191-etcTI.pdf

INA191 Product details

Description

The INAx191 is a low-power, voltage-output, current-shunt monitor (also called a current-sense amplifier) that is commonly used for overcurrent protection, precision-current measurement for system optimization, or in closed-loop feedback circuits. 0.2 V to +40 V, independent of the supply voltage.

Features

Low power:.
Supply voltage, VS: 1.7 V to 5.5 V.
Shutdown current: 100 nA (max INA191).
Quiescent current: 43 μA at 25 °C (INA191).
Low input bias currents: 100 pA (typical) (enables microamp current measurement).
Bidirectional current measurement (INA2191).
Accuracy:.
±0.25% max gain error (A2 to A5 devices).
7-ppm/°C gain drift (maximum).
±12 μV (maximum) offset voltage.
0.13-μV/°C offset drift (.

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Published: May 1, 2022 |