发明授权
- 专利标题： Programmable gain amplifier and devices including the same
- 专利标题（中）： 可编程增益放大器和包括其的器件
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申请号： US14295711申请日： 2014-06-04
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公开(公告)号： US09148600B2公开(公告)日： 2015-09-29
- 发明人: Yu Jin Park , Jae Hong Kim , Jin Ho Seo , Kwi Sung Yoo , Seog Heon Ham
- 申请人： Samsung Electronics Co., Ltd.
- 申请人地址： KR Gyeonggi-Do
- 专利权人： SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人： SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人地址： KR Gyeonggi-Do
- 代理机构： Harness, Dickey & Pierce, P.L.C.
- 优先权： KR10-2013-0069710 20130618
- 主分类号： H04N5/335
- IPC分类号： H04N5/335 ; H04N5/3745 ; H03G3/00 ; H03G1/00 ; H04N5/378
摘要：
A programmable gain amplifier includes a sampling circuit, a source follower, a first capacitor and an error amplifier. The sampling circuit is configured to perform correlated double sampling on an input signal using a reference voltage. The first capacitor is connected between the sampling circuit and the source follower. The error amplifier is connected between an input terminal of the source follower and an output terminal of the source follower. The error amplifier is configured to reset a voltage of the output terminal of the source follower to the reference voltage during a source follower reset operation.
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