Title:
CIRCUIT DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
Japanese Patent JP2017005488
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a circuit device capable of realizing a switching function of an output polarity of an output signal while suppressing adverse effects due to impedance of a selection circuit and the like, and an electronic apparatus and the like.SOLUTION: A circuit device includes: a first amplifier circuit 10 being input with first and second input signals IS1 and IS2 constituting a differential input signal and outputting first and second output signals QA1 and QA2 constituting a differential output signal; a second amplifier circuit 20 for differential input provided at a subsequent stage side to the first amplifier circuit 10; and a selection circuit 30 outputting the first output signal QA1 from the first amplifier circuit 10 to a first input node NI1 of the second amplifier circuit 20 and outputting the second output signal QA2 from the first amplifier circuit 10 to a second input node NI2 of the second amplifier circuit 20 in a first mode, and outputting the second output signal QA2 to the first input node NI1 and outputting the first output signal QA1 to the second input node NI2 in a second mode.SELECTED DRAWING: Figure 1
Inventors:
KUWANO SHUNICHI
ADACHI KAZUKIRO
ADACHI KAZUKIRO
Application Number:
JP2015117236A
Publication Date:
January 05, 2017
Filing Date:
June 10, 2015
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
H03F3/68; G01P15/12; H03F3/45
Domestic Patent References:
| JP2002530916A | 2002-09-17 | |||
| JP2012502581A | 2012-01-26 | |||
| JP2014216705A | 2014-11-17 | |||
| JP2014165759A | 2014-09-08 |
Attorney, Agent or Firm:
Kazuaki Watanabe
Keisuke Nishida
Satoshi Nakai
Keisuke Nishida
Satoshi Nakai
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