Allegro Microsystems, LLC

Tyler Daigle

Steven Daubert

Srujan Shivanakere

Maxwell McNally

Alec Smith

Craig Hiller

Methods and apparatus for a magnetic field sensor having a first set of MR elements configured to change in resistance due to an applied magnetic field having an orientation in a sensitive axis of the first set of MR elements and a second set of MR elements that are immune to the applied magnetic field. The second set of MR elements is configured to change in resistance due to temperature. A processor can compensate for the response of the first set of MR elements based on the temperature information from the second set of MR elements.

Magnetoresistance signal path compensation

Methods and apparatus for canceling inductive coupling in a magnetic field sensing device having one or more Hall elements. A device can include a Hall element having a first pair of first and second voltage sensing terminals at diametrically opposed locations on the Hall element, and a second pair of third and fourth voltage sensing terminals diametrically opposed locations on the Hall element. A first mirror conductive path extends around a perimeter of the Hall element in a first direction a second mirror conductive path extends around the perimeter of the Hall element in a second direction so that the first and second mirror conductive paths are on opposite sides of the Hall element and are equal and opposite to cancel inductive coupling.

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Scarborough, ME, United States of America

Tyler Daigle