Patent ID: 8723507
Filing Date: 2014-05-13
Classification: G01R

Abstract:
1. A packaged magnetic field sensor for receiving sensor adjustment messages from an external source, the packaged magnetic field sensor comprising: a package housing; a magnetic field sensing device situated in the package housing for sensing a magnetic field; a power input terminal accessible from outside of the package housing; a sensor output terminal accessible from outside of the package housing for providing an output signal that is related to the magnetic field sensed by the magnetic field sensing device; a sensing block situated in the package housing and electrically coupled to the magnetic field sensing device and the sensor output terminal; and an adjustment block situated in the package housing coupled to the power input terminal and the sensing block, the adjustment block adjusting at least two parameters of the output signal based on one or more sensor adjustment messages that are modulated onto the power input terminal of the packaged magnetic field sensor by the external source.