发明名称 |
Switched-capacitor amplifier with improved reset phase |
摘要 |
A switch-capacitor ("SC") amplifier includes a two-stage operational amplifier ("OP-AMP"), an input SC network, and a feedback SC network. The two-stage OP-AMP includes a first OP-AMP stage having an output coupled to an input of a second OP-AMP stage. The input SC network is coupled to an input of the first OP-AMP stage. The feedback SC network is configured to selectively couple the output of the first OP-AMP stage to the input of the first OP-AMP stage during a first phase of operation of the SC amplifier and to couple an output of the second OP-AMP stage to the input of the first OP-AMP stage during a second phase of operation of the SC amplifier.
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申请公布号 |
US7639073(B2) |
申请公布日期 |
2009.12.29 |
申请号 |
US20070941869 |
申请日期 |
2007.11.16 |
申请人 |
OMNIVISION TECHNOLOGIES, INC. |
发明人 |
DENG LIPING;DAI TIEJUN;GUO HAIDONG;LIN CHIEH-CHIEN;YANG YU-SHEN |
分类号 |
H03F1/02;H03F3/00;H04N5/374;H04N5/378 |
主分类号 |
H03F1/02 |
代理机构 |
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主权项 |
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地址 |
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