Back-biased GMR speed & direction sensor targets automotive transmissions

February 26, 2020 //By Christoph Hammerschmidt
Back-biased GMR speed & direction sensor targets automotive transmissions
With the ATS19580, semiconductor company Allegro MicroSystems is introducing what it claims to be the world’s first fully-integrated, back-biased giant magneto-resistive (GMR) transmission speed and direction sensor. The device helps designers to reduce system size, complexity and cost.

Combining GMR technology with transmission algorithms and packaging, the ATS19580 offers the widest dynamic range of operating air gap (50% larger), an industry-leading vibration immunity and EMC protection, the vendor claims.

The monolithic integration of the company’s proprietary GMR technology with digital processing are the basis for unprecetended performance: It allows formerly unachievable airgaps along with excellent vibration performance.

Monolithic integration also allows for ease of design-in with IC, magnet, and protection components in a single, overmolded package.

The device complements the company’s recently released ATS19420 and ATS19520 fully-integrated, Hall-effect transmission speed sensors, as well as its family of front-biased Hall-effect and GMR products for magnetic target sensing.

For datasheets:

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