INA790x –4V to 110V, Bidirectional, Ultra-Precise, Current Sense Amplifier With Enhanced PWM Rejection and 75A EZShunt Technology

1 Features

Precision solution with integrated shunt resistor
- ±75A continuous current at 25°C
- ±50A continuous current at +125°C
- Shunt resistor: 400µΩ
- Shunt inductance: 2nH
Wide common-mode voltage range: –4V to +110V
Enhanced PWM rejection optimized for systems subject to switching common-mode voltages
- Supports switching frequencies up to 125kHz
Excellent CMRR
- 160dB DC CMRR
- 114dB AC CMRR at 50kHz
High measurement accuracy
- System Gain error (maximum)
  - Version A: ±0.35%, ±35ppm/°C drift
  - Version B: ±1%, ±100ppm/°C drift
- Offset current (maximum)
  - Version A: ±30mA, ±625µA/°C drift
  - Version B: ±250mA, ±1.25mA/°C drift
Adjustable gain with external resistor divider network:
- 20mV/A to 400mV/A
Open-drain temperature alert at T_J of 160°C
Package options: VQFN-15