INA191 Datasheet - Texas Instruments

INA191 Ultra-Precise Current Sense Amplifier

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. This device can sense drops across shunts at common.

INA191 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 measuremen

INA191-etcTI.pdf