The Grove ±5A DC/AC Current Sensor (ACS70331) is a high-precision DC/AC current sensor based on ACS70331. The ACS70331EESATR-005B3 is Allegro’s 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.

Based on Allegro’s high sensitivity current sensor IC; ACS70331EESATR-005B3, it’s suitable for <5A current sensing applications, alongside its base sensitivity of 200mV/A!

The Grove ±5A DC/AC Current Sensor (ACS70331) can measure both the DC current and the AC current up to 5A with a base sensitivity of 200mV/A.

Note: Do not touch the module while being tested due to the risk of being shocked.

What is the current sensor? 

A current sensor is a device that detects electric current in a wire and converts current to a voltage that can be easily measured. Also, this will be proportional to the current through the measured path.

Current sensors are usually designed after taking two phenomena into consideration.

Highlighted Features

• 1 MHz bandwidth with response time <550 ns
• Low noise: 8 mA(rms) at 1 MHz
• 1.1 mΩ primary conductor resistance results in low power loss
• High DC PSRR enables use with low-accuracy power supplies or batteries (3 to 4.5 V operation)