发明授权
- 专利标题： Offset fixing operational amplifier circuit
- 专利标题（中）： 偏移固定运算放大器电路
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申请号： US12128177申请日： 2008-05-28
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公开(公告)号： US07667536B2公开(公告)日： 2010-02-23
- 发明人: Munehiko Ogawa , Tomokazu Kojima , Hiroshi Kojima
- 申请人： Munehiko Ogawa , Tomokazu Kojima , Hiroshi Kojima
- 申请人地址： JP Osaka
- 专利权人： Panasonic Corporation
- 当前专利权人： Panasonic Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： McDermott Will & Emery LLP
- 优先权： JP2007-157234 20070614
- 主分类号： H03F1/02
- IPC分类号： H03F1/02
摘要：
In an offset fixing operational amplifier circuit, an operational amplifier circuit includes an input stage containing a first constant current source, a second constant current source, a first differential pair and a second differential pair. A bias circuit supplies a bias voltage to the operational amplifier circuit. An offset fixing circuit controls the input stage in accordance with an input voltage of the operational amplifier circuit.
公开/授权文献
- US20080309410A1 OFFSET FIXING OPERATIONAL AMPLIFIER CIRCUIT 公开/授权日：2008-12-18