Allegro MicroSystems ACS70331
GMR-Based Current Sensor
| Part No. | ACS70331 |
|---|---|
| Datasheet | ACS70331 Download |
| Manufacturer |  Allegro MicroSystems |
| Description | GMR-Based Current Sensor |
| Buy | Stock & Price |
FEATURES AND BENEFITS
● 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
● Small surface mount QFN-12 and SOIC-8 packages for space-constrained applications PACKAGES 12-contact QFN 3 mm × 3 mm × 0.75 mm (ES package) Not to scale 8-contact SOIC (OL package)
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. The analog output provides a low noise high-speed signal, which is proportional to the current flowing through the primary.
