Texas Instruments INA186/INA186-Q1 Current Shunt Monitor is a bidirectional, low-power, voltage-output, current-sense amplifier (also called a current-shunt monitor). This device is commonly used for overcurrent protection, precision current measurement for system optimization, or in closed-loop feedback circuits. The INA186/INA186-Q1 can sense drops across shunts at common-mode voltages from –0.2V to +40V, independent of the supply voltage. Five fixed gain options are available: 25V/V, 50V/V, 100V/V, 200V/V, or 500V/V. The low input bias current of the INA186/INA186-Q1 permits the use of larger current-sense resistors, thus providing accurate current measurements in the microamp range. The low offset voltage of the zero-drift architecture extends the dynamic range of the current measurement. This feature allows for smaller sense resistors with lower power loss, while still providing accurate current measurements. The INA186-Q1 devices are AEC-Q100 qualified for automotive applications.