发明授权
- 专利标题： Analog switching circuit, associated control circuit and method
- 专利标题（中）： 模拟开关电路，相关控制电路及方法
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申请号： US13889156申请日： 2013-05-07
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公开(公告)号： US08896363B2公开(公告)日： 2014-11-25
- 发明人: Da Chen , Zhengwei Zhang , Wei Mao
- 申请人： Monolithic Power Systems, Inc.
- 申请人地址： US CA San Jose
- 专利权人： Monolithic Power Systems, Inc.
- 当前专利权人： Monolithic Power Systems, Inc.
- 当前专利权人地址： US CA San Jose
- 代理机构： Perkins Coie, LLP
- 优先权： CN201220202095U 20120508
- 主分类号： H03K17/00
- IPC分类号： H03K17/00 ; H03K17/687
摘要：
The present invention discloses an analog switching circuit having a first terminal receiving an input signal, a second terminal providing an output signal and a control terminal receiving a switching control signal. The analog switching circuit has a first logic circuit providing a first control signal and a second control signal based on the switching control signal; an NMOS and a PMOS coupled between the first terminal and the second terminal, and controlled by the first control signal and the second control signal respectively; a first control circuit controls the backgate voltage of the NMOS based on the input signal and the switching control signal; and a second control circuit controls the backgate voltage of the PMOS based on the input signal and the switching control signal.
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