%0 Journal Article
%T Switched-capacitor multiply-by-two amplifier with reduced capacitor mismatches sensitivity and full swing sample signal common-mode voltage<br>采样信号全摆幅的失配不敏感开关电容二倍放大器
%A Xu Xinnan
%A Yao Suying
%A Xu Jiangtao
%A Nie Kaiming
%A <br>徐新楠
%A 姚素英
%A 徐江涛
%A 聂凯明
%J 半导体学报
%D 2012
%I 
%X A switched-capacitor amplifier with an accurate gain of two that is insensitive to component mismatch is proposed. This structure is based on associating two sets of two capacitors in cross series during the amplification phase. This circuit permits the common-mode voltage of the sample signal to reach full swing. Using the charge-complement technique, the proposed amplifier can reduce the impact of parasitic capacitors on the gain accuracy effectively. Simulation results show that as sample signal common-mode voltage changes, the difference between the minimum and maximum gain error is less than 0.03%. When the capacitor mismatch is increased from 0 to 0.2%, the gain error is deteriorated by 0.00015%. In all simulations, the gain of amplifier is 69 dB.
%K multiply-by-two amplifier
%K mismatch-insensitive amplifier
%K full swing
%K switched-capacitor circuits<br>二倍放大器，失配不敏感放大器，全摆幅，开关电容电路
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=025C8057C4D37C4BA0041DC7DE7C758F&aid=721AF616C5F2DD3E41598E2DD7B35540&yid=99E9153A83D4CB11&vid=27746BCEEE58E9DC&iid=708DD6B15D2464E8&sid=BF740E48E0810A49&eid=DF92D298D3FF1E6E&journal_id=1674-4926&journal_name=半导体学报&referenced_num=0&reference_num=13