CIRCUIT DEVICE, PHYSICAL QUANTITY DETECTION DEVICE, ELECTRONIC APPARATUS, AND MOVING OBJECT

摘要

A circuit device includes a detection circuit to which first and second detection signals forming differential signals are input from a physical quantity transducer and a diagnosis circuit. The detection circuit includes first and second charge/voltage conversion circuits. The diagnosis circuit includes a first capacitor which is provided between a first node and a first input node to which the first detection signal is input and a second capacitor which is provided between the first node and a second input node to which the second detection signal is input and has a different capacitor value from the first capacitor. In a diagnosis mode, a diagnosis signal is input to the first node.

主权项

1. A circuit device comprising:
a detection circuit to which first and second detection signals forming differential signals are input from a physical quantity transducer; and a diagnosis circuit of the detection circuit, wherein the detection circuit includes
a first charge/voltage conversion circuit to which the first detection signal is input, anda second charge/voltage conversion circuit to which the second detection signal is input, and wherein the diagnosis circuit includes
a first capacitor which is provided between a first node and a first input node of the first charge/voltage conversion circuit to which the first detection signal is input, anda second capacitor which is provided between the first node and a second input node of the second charge/voltage conversion circuit to which the second detection signal is input and has a different capacitor value from the first capacitor, and wherein in a diagnosis mode, a diagnosis signal is input to the first node.