MULTI-AXIS MAGNETIC FIELD SENSING DEVICE AND METHODS FOR FABRICATING THE SAME

摘要

A multi-axis magnetometer (100) is provided having three magnetic field sensing circuits for sensing a magnetic field along the X, Y and Z axes. Each magnetic field sensing circuit includes an operational amplifier and a bridge chip (10) having at least one electrical conductor. The operational amplifier (12) is electrically connected to the at least one electrical conductor of the bridge chip (10) for receiving a portion of a current flowing through the at least one electrical conductor. The operational amplifier (12) provides an output voltage based on a magnitude of the portion of the current flowing through the at least one electrical conductor. The multi-axis magnetometer (100) further includes a voltage regulator (14) providing an operating voltage.