Magnetic Speed Sensors

Two-Wire True Zero-Speed Miniature Differential Peak-Detecting Sensor IC with Continuous Calibration

A1642

These parts are in production but have been determined to be NOT FOR NEW DESIGN. The A1642 is an optimized Hall-effect IC for true zero-speed digital ring-magnet sensing in two-wire applications. It features a dual-element sensor and sophisticated digital processing for air-gap independent switchpoints and running-mode calibration, providing speed and duty cycle information, ideal for ABS.

Product Details

Top Features

  • Running mode calibration for continuous optimization
  • Single chip IC for high reliability
  • Internal current regulator for 2-wire operation
  • Precise duty cycle signal over operating temperature range
  • Large operating air gaps
  • Automatic Gain Control (AGC) for air gap independent switchpoints
  • Automatic Offset Adjustment (AOA) for signal processing optimization
  • True zero-speed operation
  • Undervoltage lockout
  • Wide operating voltage range

Part Number Specifications and Availability

Design Tools