Invention Grant
- Patent Title: Differential amplifier
- Patent Title (中): 差分放大器
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Application No.: US12801304Application Date: 2010-06-02
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Publication No.: US08125274B2Publication Date: 2012-02-28
- Inventor: Michimasa Yamaguchi , Kenichi Kawakami
- Applicant: Michimasa Yamaguchi , Kenichi Kawakami
- Applicant Address: JP Kawasaki-shi, Kanagawa
- Assignee: Renesas Electronics Corporation
- Current Assignee: Renesas Electronics Corporation
- Current Assignee Address: JP Kawasaki-shi, Kanagawa
- Agency: McGinn IP Law Group, PLLC
- Priority: JP2009-178960 20090731
- Main IPC: H03F3/45
- IPC: H03F3/45
Abstract:
A differential amplifier including: 1st transistor that is connected between 1st power-supply terminal and 1st output terminal, and has a control terminal receiving one of the differential input signals; 2nd transistor that is connected between 2nd power-supply terminal and 1st output terminal, and has a control terminal receiving the other of the differential input signals; 1st switch that is connected between 1st power-supply terminal and 1st transistor; 3rd transistor that is connected between 2nd power-supply terminal and 2nd output terminal, and has a control terminal receiving one of the differential input signals; 4th transistor that is connected between 1st power-supply terminal and 2nd output terminal, and has a control terminal receiving the other of the differential input signals; 2nd switch that is connected between 2nd power-supply terminal and 3rd transistor. Drive state of 1st and 2nd switches are controlled by a control signal.
Public/Granted literature
- US20110025416A1 Differential amplifier Public/Granted day:2011-02-03
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