Description
The ATS657 includes an optimized Hall-effect sensing integrated circuit (IC) and rare earth pellet to create a user friendly solution for direction detection and true zero-speed, digital gear tooth sensing in two-wire applications. The small package can be easily assembled and used in conjunction with a wide variety of gear tooth sensing applications.

Features and Benefits
▪ Rotational direction detection
▪ High start-up and running mode vibration immunity
▪ Single-chip sensing IC for high reliability
▪ Internal current regulator for two-wire operation
▪ Variable pulse width output protocol
▪ Automatic Gain Control (AGC) and offset adjust circuit
▪ True zero-speed operation
▪ Wide operating voltage range
▪ Undervoltage lockout
▪ ESD and reverse polarity protection