The A1468 is an optimized Hall effect sensing IC that provides
   a user-friendly solution for digital ring-magnet sensing, or when coupled with a magnet, ferromagnetic target sensing, in three-wire applications. The small device package can be easily assembled into applications for use in conjunction with a wide variety of target shapes and sizes. DESCRIPTION

FEATURES AND BENEFITS
• 4.0 to 26.5 V supply operating range
• Minimum differential field 20 G
   pk-pk
• Running mode calibration for continuous optimization
• Single chip IC for high reliability
• Precise duty cycle signal throughout 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
• Reverse battery protection
• Scan and IDDQ for increased test coverage