A1469 - Three-Wire True Zero-Speed Differential Peak-Detecting Sensor IC
Allegro MicroSystems
General Description
TheA1469 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.
Key Features
Unique design for robustness against high-power EMC transients.
Peak detection based switching algorithm for large operating air gaps.
Minimum differential field 20 Gpk-pk.
Running mode calibration for continuous optimization.
Precise duty cycle signal throughout operating
temperature range.
Automatic Gain Control (AGC) for air-gap.
independent
switchpoints.
Automatic Offset Adjustment (AOA) for signal
processing optim.
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A1469. For precise diagrams, and layout, please refer to the original PDF.
A1469 Three-Wire True Zero-Speed Differential Peak-Detecting Sensor IC with Continuous Calibration FEATURES AND BENEFITS • Unique design for robustness against high-power...
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EATURES AND BENEFITS • Unique design for robustness against high-power EMC transients • Peak detection based switching algorithm for large operating air gaps • Minimum differential field 20 Gpk-pk • Running mode calibration for continuous optimization • Precise duty cycle signal throughout operating temperature range • Automatic Gain Control (AGC) for air-gap–independent switchpoints • Automatic Offset Adjustment (AOA) for signal processing optimization • True zero-speed operation • Scan and IDDQ for increased test coverage PACKAGE: 4-pin SIP (suffix K) Not to scale DESCRIPTION TheA1469 is an optimized Hall-effect sensing