ACS70331 Overview
Description
The ACS70331 is Allegro’s first integrated, high sensitivity, current sensor IC for <5 A current sensing applications. It incorporates giant magneto-resistive (GMR) technology that is 25 times more sensitive than traditional Hall-effect sensors to sense the magnetic field generated by the current flowing through the low resistance, integrated primary conductor.
Key Features
- High sensitivity current sensor IC for sensing up to 5 A (DC or AC)
- 1 MHz bandwidth with response time <550 ns
- Low noise: 8 mA(rms) at 1 MHz
- Non-ratiometric, analog output proportional to AC and DC current
- Single 3.3 V supply operation
- High DC PSRR enables use with low accuracy power supplies or batteries (3 to 4.5 V operation)
- 1.1 mΩ primary conductor resistance results in low power loss
