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Patent NumberCN101425792B
Status已授權 Granted
一种负反馈型混合积分器的双二阶单元
Year Issued2012
2012-01-11
Application Number200810227128.6
Application Date2008-11-21
Rights Holder中国科学院微电子研究所
陈勇; 周玉梅
Date Available2009-05-06
Country中国
Subtype发明专利 Invention
Abstract

本发明公开了一种负反馈型混合积分器的双二阶单元,包括:第一级跨导-电容积分器,包括两个PMOS晶体管和一个电容,用于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,包括两个PMOS晶体管和一个电容,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,包括两个NMOS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。本发明提出的负反馈型混合积分器的双二阶单元,用于级联设计方法实现高阶模拟滤波器。该结构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) NumberCN101425792A
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
陈勇,周玉梅. 一种负反馈型混合积分器的双二阶单元. CN101425792B[P]. 2012-01-11.
APA 陈勇., & 周玉梅 (2008-11-21). 一种负反馈型混合积分器的双二阶单元.
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