INA240-Q1 Overview
Description
The INA240-Q1 device is an automotive-qualified, voltage-output, current-sense amplifier with enhanced PWM rejection that can sense drops across shunt resistors over a wide common-mode voltage range from –4 V to 80 V, independent of the supply voltage. The negative common-mode voltage allows the device to operate below ground, accommodating the flyback period of typical solenoid applications.
Key Features
- Functional Safety-Capable – Documentation available to aid functional safety system design
- Enhanced PWM Rejection
- Excellent CMRR: – 132-dB DC CMRR – 93-dB AC CMRR at 50 kHz
- Wide Common-Mode Range: –4 V to 80 V
- Accuracy: – Gain Error: 0.20% (Maximum) With 2.5 ppm/°C (Maximum Drift) – Offset Voltage: ±25 μV (Maximum) With 250 nV/°C (Maximum Drift)
