ATS692: Two-Wire, Differential, Vibration Resistant Sensor IC with Speed and Direction Output


The ATS692LSH is an optimized Hall-effect integrated circuit (IC) and rare earth pellet combination that provides a user-friendly solution for direction detection and true zero-speed, digital gear tooth sensing. The small package can be assembled simply and used in conjunction with a wide variety of gear tooth sensing applications.

The IC employs patented algorithms for the special operational requirements of automotive transmission applications. The speed and direction of the target are communicated through a variable pulse width output protocol. The ATS692 is particularly adept at handling vibration without sacrificing maximum air gap capability or creating any erroneous direction information.

Even higher angular vibration caused by engine cranking is completely rejected by the device. The advanced vibration detection algorithm systematically calibrates the sensor IC on the initial teeth of true target rotation and not on vibration, always guaranteeing an accurate signal in running mode.

Advanced signal processing and innovative algorithms make the ATS692 an ideal solution for a wide range of speed and direction sensing needs.

This device is available in a lead (Pb) free 4-pin SIP package with a 100% matte tin plated leadframe.

Featured Video:

Differential Speed Sensor System Solutions

Seth Prentice, Strategic Marketing Manager for Allegro MicroSystems Speed Sensor IC group, discusses IC solutions for designing speed sensing applications including automotive transmissions, washing machine drum speeds, and fork lift positioning requiring reliable consistent output signals. Watch Video

Top Features

  • Two-wire, pulse width output protocol
  • Digital output representing target profile
  • Speed and direction information of target
  • Vibration tolerance
    • Small signal lockout for small amplitude vibration
    • Proprietary vibration detection algorithms for large amplitude vibration
  • Air gap independent switch points
  • Large operating air gap capability
  • Undervoltage lockout
  • True zero-speed operation
  • Wide operating voltage range
  • Single chip sensing IC for high reliability
  • Robust test coverage capability with Scan Path and IDDQ measurement

Typical Applications

  • Transmission

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Part Composition /
RoHS Data
Comments Samples Check Stock
ATS692LSHTN-RSNBL-T 4-lead SIP -40°C to 150°C Yes View Data Contact your
local sales rep
Distributor Stock
ATS692LSHTN-RSNPH-T 4-lead SIP -40°C to 150°C Yes View Data Contact your
local sales rep
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.



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