Circuits And Methods Using Adjustable Feedback For Self-Calibrating Or Self-Testing A Magnetic Field Sensor With An Adjustable Time Constant

摘要

A magnetic field sensor includes a reference-field-sensing circuit channel that allows a self-test or a self-calibration of the circuitry of the magnetic field sensor. The self-test or the self calibration can have at least two different bandwidths that provide a respective at least two different rates of self-test or self-calibration.