The A1642 is an optimized Hall effect sensing integrated circuit that provides a user-friendly solution for true zero-speed digital ring-magnet sensing in two-wire applications. This small package can be easily assembled and used in conjunction with a wide variety of target shapes and sizes.

Features and Benefits

• Running mode calibration for continu ous 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