Title:
回路装置、物理量検出装置、電子機器及び移動体
Document Type and Number:
Japanese Patent JP6500522
Kind Code:
B2
Abstract:
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.
Inventors:
Takashi Aoyama
Application Number:
JP2015051697A
Publication Date:
April 17, 2019
Filing Date:
March 16, 2015
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
G01C19/5719; H01L41/09; H01L41/113
Domestic Patent References:
| JP2002213961A | ||||
| JP8082525A |
Foreign References:
| WO2014173981A1 |
Attorney, Agent or Firm:
Takekoshi Noboru
Inoue Ichi
Yasushi Kuroda
Inoue Ichi
Yasushi Kuroda