ACS37003: 400 kHz, High Accuracy Current Sensor with 5kV Isolation

Description

The ACS37003 is a 400kHz Hall-effect current sensor with 5kV isolation offering very high accuracy. It is ideal for industrial motor inverter and power control applications. The sensed current enters the package in close proximity to the IC for high coupling of the magnetic field to the Hall-effect sensor. As a result of galvanic isolation between the current and the IC, high voltage isolation rating is achieved. The current is sensed differentially by two Hall plates that subtract out interfering external common-mode magnetic fields. The sensor is factory-trimmed to provide high accuracy over the entire operating range without the need for customer programming.   

The ACS37003 sensor has an analog output and a reference output for signal integrity in noisy environments. It's available in a SOICW-16 (MC) package with very low internal conductor resistance of 0.27mOhms and high isolation rating of 5 kVrms for applications where ultra-low power loss and high reinforced isolation are needed.

Top Features

  • 400kHz operating bandwidth offers fast control loops and use for monitoring high-speed currents
  • High accuracy achieved with 6 mV maximum offset voltage over temperature and non-radiometric operation with VREF output, and differential sensing for high immunity to magnetic fields
  • Externally configurable gain settings using two logic pains and four adjustable gain levels for design flexibility

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check Stock
ACS37003KMCATR-050B5 16-lead SOIC -40°C to 125°C Yes View Data Contact your
local sales rep
Check
Distributor Stock
ACS37003KMCATR-085B5 16-lead SOIC -40°C to 125°C Yes View Data Contact your
local sales rep
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Distributor Stock
ACS37003KMCATR-120B3 16-lead SOIC -40°C to 125°C Yes View Data Contact your
local sales rep
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Distributor Stock
ACS37003KMCATR-180B5 16-lead SOIC -40°C to 125°C Yes View Data Contact your
local sales rep
Check
Distributor Stock

Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Allegro’s product can reasonably be expected to cause bodily harm.

Allegro MC 16-Pin Package Image

Packaging

The ACS37003 sensor is available in a SOICW-16 (MC) package with very low internal conductor resistance of 0.27mOhms and high isolation rating of 5 kVrms for applications where ultra-low power loss and high reinforced isolation are needed.

MC Package Documentation

Design Support Tools

Allegro Customer Portal: Gain access to Allegro product software and design tools.

Models

ACS LTspice Library

Whitepapers and Brochures 

High Accuracy 400 kHz Current Sensing

Frequently Asked Questions

Current Sensor FAQ »