Date: 06/05/2009

Allegro launches differential analog Hall-effect sensor

Allegro MicroSystems has introduced a differential analog Hall-effect sensor that switches in response to changing magnetic fields. This new 3 pin device with enhanced EMC uses an analog peak-detecting algorithm, automatic gain control and an integrated tracking capacitor to provide accurate edge detection corresponding to a rotating ferrous target. The peak-detecting algorithm is ideal for use in camshaft applications with the ability to sense a wide range of target geometries including fine pitch, encoded targets.

Allegro's ATS617LSG is offered in the "SG" magnetically integrated package. The SG is a single step over-molded package, which consists of a samarium cobalt magnet and a Hall-Effect IC. It is lead (Pb) free, with 100% matte tin lead frame plating.