These parts are in production and have been determined to be NOT FOR NEW DESIGN. Please refer to the ACS37035 for new designs. Learn More

Current Sensors

1 MHz Bandwidth, Galvanically Isolated Current Sensors with Overcurrent Fault Detection

ACS732-3

The ACS732/3 current sensors provide high-bandwidth (1MHz) current sensing with user-configurable overcurrent fault detection and galvanic isolation. The ACS732 is designed for 5V operation, while the ACS733 operates at 3.3V.

Evaluation Board

Product Details

Top Features

  • AEC-Q100 automotive qualified
  • High bandwidth, 1 MHz analog output
  • Differential Hall sensing rejects common-mode fields
  • High-isolation SOIC16 wide body package provides galvanic isolation for high-voltage applications
  • Industry-leading noise performance with greatly improved bandwidth through proprietary amplifier and filter design
  • UL60950-1 (ed. 2) certified
    • Dielectric Strength Voltage = 3.6 kVRMS
    • Basic Isolation Working Voltage = 616 VRMS
  • Fast and externally configurable overcurrent fault detection
  • 1 mΩ primary conductor resistance for low power loss and high inrush current withstand capability
  • Options for 3.3 V and 5 V single supply operation
  • Output voltage proportional to AC and DC current
  • Factory-trimmed sensitivity and quiescent output voltage for improved accuracy
  • Nearly zero magnetic hysteresis
  • Ratiometric output from supply voltage
Target Application

Part Number Specifications and Availability

Design Tools

ECAD FILE

ACS732

ACS732 ECAD Model
ECAD FILE

ACS733

ACS733 ECAD Model
Gerber File

ASEK733 Gerber Files
Simulation Tool

Current Sensor Error and Resolution
SPICE Model

ACS LTspice Library
User Guide

ACS732 and ACS733 Evaluation Board User Manual
Webpage

Current Sensor Evaluation Boards Page
Webpage

Software Portal

Technical Documentation

CMTI Comparison for Allegro Integrated Conductor Current Sensors
Application Note

CMTI Comparison for Allegro Integrated Conductor Current Sensors

How to Analyze and Compare Allegro Current Sensor and ADC Error Components
Application Note

How to Analyze and Compare Allegro Current Sensor and ADC Error Components

Differential Current Sensing with the 1 MHz Bandwidth ACS733
Application Note

Differential Current Sensing with the 1 MHz Bandwidth ACS733

Package Thermal Resistance for Allegro Current Sensors with Integrated Conductors
Application Note

Package Thermal Resistance for Allegro Current Sensors with Integrated Conductors

Glossary of Isolation-Related Terms for Integrated Current Sensors
Application Note

Glossary of Isolation-Related Terms for Integrated Current Sensors

Techniques to Mitigate Offset Error of ACS732 and ACS733
Application Note

Techniques to Mitigate Offset Error of ACS732 and ACS733

Current Sensing in Motor Drives
Application Note

Current Sensing in Motor Drives

Certificate CB US 42444 UL CB Package
Certificate

Certificate CB US 42444 UL CB Package

CB Certificate US 23711 A2 UL
Certificate

CB Certificate US 23711 A2 UL

Certificate of Compliance 20190906-E316429
Certificate

Certificate of Compliance 20190906-E316429

Certificate CB US 36315 UL MA Package
Certificate

Certificate CB US 36315 UL MA Package

CB Certificate US-32210-M3-UL
Certificate

CB Certificate US-32210-M3-UL

Certificate of Compliance 20160520 E316429
Certificate

Certificate of Compliance 20160520 E316429

Certificate of Compliance 20170510-E316429
Certificate

Certificate of Compliance 20170510-E316429

Current Sensors FAQ
FAQ

Current Sensors FAQ

ACS733LA Evaluation Board User Guide
Guide

ACS733LA Evaluation Board User Guide

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