INA2191 Overview
The INAx191 is a low-power, voltage-output, current-shunt monitor (also called a current-sense amplifier) that is monly used for overcurrent protection, precision-current measurement for system optimization, or in closed-loop feedback circuits. This device can sense drops across shunts at monmode voltages from 0.2 V to +40 V, independent of the supply voltage. The low input bias current of the INAx191 permits the...
INA2191 Key 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