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Patent NumberCN101425793B
Status已授權 Granted
一种用于实现零极点型高阶滤波器的混合积分器双二阶单元
Year Issued2011
2011-07-06
Application Number200810227129.0
Application Date2008-11-21
Rights Holder中国科学院微电子研究所
周玉梅; 陈勇
Date Available2009-05-06
Country中国
Subtype发明专利 Invention
Abstract

本发明公开了一种用于实现零极点型高阶滤波器的混合积分器双二阶单元,包括:第一级跨导-电容积分器,接收输入电压信号转换成电流信号,给电容充电,形成第一级积分器;第二级基于源极跟随器积分器用于将第一级积分器输出的电压信号转换成电流信号,给电容充电,形成第二级积分器;反馈晶体管,用于与两个积分器一起综合复数极点,并控制输出共模电压;电流源,提供双二阶单元的支路电流;同相前馈电容元件,确定混合积分器双二阶单元的复数共轭零点特性。本发明提出的混合积分器双二阶单元,用于级联设计方法实现零极点型高阶模拟滤波器。该双二阶单元中除了不需要共模反馈电路,还可以实现大于0dB的直流增益。

Language中文Chinese
Open (Notice) NumberCN101425793A
IPC Classification NumberH03h11/04 ; H03h11/12
URLView the original
Document TypePatent
CollectionINSTITUTE OF MICROELECTRONICS
Affiliation中国科学院微电子研究所
Recommended Citation
GB/T 7714
周玉梅,陈勇. 一种用于实现零极点型高阶滤波器的混合积分器双二阶单元. CN101425793B[P]. 2011-07-06.
APA 周玉梅., & 陈勇 (2008-11-21). 一种用于实现零极点型高阶滤波器的混合积分器双二阶单元.
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