基于第三代电流传输器的有源滤波器的导出  

Derivation of Active Filter Based on 3rd-Generation Current Conveyor

作　　者：左兵[1] 陈向东[1] 姚尧[1] 

机构地区：[1]西南交通大学信息科学与技术学院,微电子与固体电子研究所,成都610031

出　　处：《微电子学》2009年第2期178-180,共3页Microelectronics

基　　金：国家自然科学基金资助项目(60572026);四川省学术与技术带头人培养基金重点资助项目(Q024131103010018);西南交通大学科技发展基金资助项目(2006A05)

摘　　要：阐述了由电压模式有源RC滤波器导出基于电流传输器(CCIII)的电流模式连续时间滤波器的方法。即由运算放大器(OA)滤波器导出CC滤波器;导出的电流模式2阶滤波器结构简单,能实现2阶低通、高通、带通滤波,不仅所有无源和有源灵敏度都很低,而且当无源参数确定后,有源参数对极点频率W0不产生影响,W0保持恒定。HSPICE仿真表明,提出的电路是可行的。An approach to deriving current mode continuous-time filter based on third-generation current conveyor （CCIII） from voltage-mode active RC filter was presented. The filter can realize second-order low-pass, high-pass and band-pass filtering functions. The proposed circuits have simple structure, low passive/active sensitivity. In addition, active parameters would have no effect on pole frequency W0, which remain constant, when passive parameters were defined. HSPICE simulation demonstrated the feasibility of the proposed circuits.

关 键 词：电流传输器 有源滤波器 电流模式 灵敏度 

分 类 号：TN713.8[电子电信—电路与系统]