发明申请
- 专利标题： OPERATIONAL AMPLIFIER CIRCUITS
- 专利标题（中）： 操作放大器电路
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申请号： US13612784申请日： 2012-09-12
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公开(公告)号： US20130200953A1公开(公告)日： 2013-08-08
- 发明人: Hung-Chieh TSAI , Chi-Lun LO , Chen-Yen HO , Yu-Hsin LIN
- 申请人： Hung-Chieh TSAI , Chi-Lun LO , Chen-Yen HO , Yu-Hsin LIN
- 申请人地址： TW Hsin-Chu
- 专利权人： MEDIATEK INC.
- 当前专利权人： MEDIATEK INC.
- 当前专利权人地址： TW Hsin-Chu
- 主分类号： H03F3/45
- IPC分类号： H03F3/45 ; H03F3/193
摘要：
An operational amplifier circuit includes a first stage amplifier circuit, a second stage amplifier circuit and a first feedforward circuit. The first stage amplifier circuit is coupled to a first input node for receiving a first input signal and amplifying the first input signal to generate a first amplified signal. The second stage amplifier circuit is coupled to the first stage amplifier circuit for receiving the first amplified signal and amplifying the first amplified signal to generate a first output signal at a first output node. The first feedforward circuit is coupled between the first input node and the second stage amplifier circuit for feeding the first input signal forward to the second stage amplifier circuit.
公开/授权文献
- US08890611B2 Operational amplifier circuits 公开/授权日：2014-11-18
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