Allegro New Product Release

ATS682LSH Two-Wire, True Zero-Speed, Differential Peak-Detecting Sensor Released to Market

Today, we will be releasing the ATS682LSH Two-Wire, True Zero-Speed, Differential Peak-Detecting Sensor to market.  Product Description:  The ATS682LSH is a Hall-effect sensing integrated circuit and magnet combination that provides a user-friendly solution for true zero-speed digital gear-tooth sensing in two-wire applications. This small package, with an optimized two-wire lead frame, can be easily assembled and used in conjunction with a wide variety of gear 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 ferrous gear teeth. The circuitry contains a sophisticated digital circuit that reduces magnet and system offsets, calibrates the gain for air gap independent switch points and provides true zero-speed operation.  Signal optimization occurs at power-up through the combination of offset and gain-adjust and is maintained throughout operation with the use of a running-mode calibration scheme. Running-mode calibration allows immunity to environmental effects such as micro-oscillations of the sensed target at start-up or sudden air gap changes.

The regulated current output is configured for two wire interface circuitry and is ideally suited for obtaining speed information in wheel speed applications. The Hall element spacing is optimized for high resolution, small diameter targets.