INA190 Overview
The INA190 is a low-power, voltage-output, currentshunt monitor (also called a current-sense amplifier). This device is monly used for overcurrent protection, precision current measurement for system optimization, or in closed-loop feedback circuits. The INA190 can sense drops across shunts at monmode voltages from 0.2 V to +40 V, independent of the supply voltage.
INA190 Key Features
- 1 Low input bias currents: 500 pA (typ) (enables microamp current measurement)
- Low power
- Low supply voltage, VS: 1.7 V to 5.5 V
- Low shutdown current: 100 nA (max)
- Low quiescent current: 50 μA at 25°C (typ)
- Accuracy
- mon-mode rejection ratio: 132 dB (min)
- Gain error: ±0.2% (A1 device)
- Gain drift: 7 ppm/°C (max)
- Offset voltage, VOS: ±15 μV (max)