CIRCUITS AND METHODS FOR PROCESSING SIGNALS GENERATED BY A CIRCULAR VERTICAL HALL (CVH) SENSING ELEMENT IN THE PRESENCE OF A MULTI-POLE MAGNET

摘要

A magnetic field sensor has a circular vertical Hall CVH sensing element (52) with a plurality of vertical Hall elements disposed over a common implant region in a substrate. The plurality of vertical Hall elements is disposed in an x-y plane. The magnetic field sensor is responsive to a magnetic field generated by a multi-pole magnet (51) having a plurality of north poles and also a plurality of south poles arranged in a plane parallel to the x-y plane, and, in some embodiments, arranged in the x-y plane. A corresponding method is also described.