Chopper-stabilized amplifier and magnetic field sensor

Details Chopper-stabilized amplifier and magnetic field sensor Chopper-stabilized amplifier and magnetic field sensor

2008-04-29

2009-10-20

Choe, Henry K (Department: 2817)

Amplifiers

With periodic switching input-output

C330S006000

Reexamination Certificate

active

07605647

ABSTRACT:
A chopper-stabilized amplifier has switching networks arranged to support a high frequency clocking signal and to provide a high common mode rejection and a high rejection of an offset component of an input signal. A magnetic field sensor includes a Hall effect element coupled to a modulation circuit. The modulation circuit provides a signal to the chopper-stabilized amplifier. The chopper-stabilized amplifier provides an output signal to a low pass filter, which provides an output signal from the magnetic field sensor.

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