US 12,320,867 B2
Sensor with adjustable digital output signal resolution
Sebastian Schäfer, St Leon Rot (DE)
Assigned to Allegro MicroSystems, LLC, Manchester, NH (US)
Filed by Allegro MicroSystems, LLC, Manchester, NH (US)
Filed on Aug. 29, 2023, as Appl. No. 18/457,413.
Prior Publication US 2025/0076415 A1, Mar. 6, 2025
Int. Cl. G01R 33/00 (2006.01); G01R 33/07 (2006.01)
CPC G01R 33/0029 (2013.01) [G01R 33/07 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A sensor integrated circuit configured to generate a digital sensor output signal indicative of a sensed parameter, comprising:
a sensing element configured to generate a sensing element output signal proportional to the sensed parameter;
a front-end amplifier coupled to receive the sensing element output signal and configured to generate an amplifier output signal; and
a sigma-delta modulator coupled to receive the amplifier output signal and configured to generate the digital sensor output signal, wherein at least one of the front-end amplifier or the sigma-delta modulator has an adjustable setting configured to change a resolution of the digital sensor output signal.