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A1642LK
Two-Wire True Zero-Speed Miniature Differential Peak-Detecting Sensor with Continuous Calibration
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. The integrated circuit incorporates a dual-element Hall effect sensor and signal processing that switches in response to differential magnetic signals created by ring magnet poles. The circuitry contains a sophisticated digital circuit to reduce system offsets, to calibrate the gain for air-gap–independent switchpoints, and to achieve true zero-speed operation.
A1642LK Datasheet
