Circuit device and physical quantity detection device

Abstract

A circuit device includes a physical quantity detection signal outputting circuit including a first amplifier that receives a first signal output from a physical quantity detection element detecting a physical quantity and outputs a first amplified signal obtained by amplifying the first signal, a second amplifier that receives a second signal output from the physical quantity detection element and outputs a second amplified signal obtained by amplifying the second signal, and a differential amplifier circuit that outputs a differential amplified signal obtained by amplifying a difference between the first amplified signal and the second amplified signal, the physical quantity detection signal outputting circuit outputting a physical quantity detection signal corresponding to the physical quantity based on the differential amplified signal, and an in-phase feedback circuit that detects an in-phase signal component included in the first amplified signal and the second amplified signal, and outputs a feedback signal based on a detection signal of the in-phase signal component to the first amplifier and the second amplifier.

Dependencies are inferred from the claim text.