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.