The ATS605LSG from Allegro provides a single IC solution to rotational position sensing applications with a ferrous gear target. The SG package incorporates a rare earth pellet for ease-of-manufacturing, consistent performance over temperature, and enhanced reliability.

Three Hall elements are incorporated to create two independent differential channels. These channels are processed by the IC, which contains a sophisticated digital circuit designed to eliminate the detrimental effects of magnet and system offsets. Hall differential signals are used to produce a highly accurate speed output and, if desired, provide information on the direction of rotation.