新颖的电压模式通用双二阶CFOA滤波器

吉林大学学报(工学版) ›› 2013, Vol. 43 ›› Issue (增刊1): 402-405.

新颖的电压模式通用双二阶CFOA滤波器

臧睦君, 王春悦, 冯进

吉林大学通信工程学院,长春 130012

收稿日期:2012-06-03 发布日期:2013-06-01
通讯作者: 王春悦(1971-),女,副教授.研究方向:信号与信息处理.E-mail:wangchunyue1971@163.com E-mail:wangchunyue1971@163.com
作者简介:臧睦君(1984-),女,硕士研究生.研究方向:混合模式滤波器.E-mail:zmjun_candy@hotmail.com
基金资助:
吉林大学科学前沿与交叉学科创新项目(200903300).

Novel design of voltage-mode universal biquad CFOA filter

ZANG Mu-jun, WANG Chun-yue, FENG Jin

College of Communication Engineering, Jilin University, Changchun 130012, China

Received:2012-06-03 Published:2013-06-01

摘要/Abstract

摘要：

提出了一种新颖的电压模式通用双二阶电流反馈放大器 (Current-feedback operational amplifier,CFOA)滤波电路结构,该电路由四个电流反馈放大器、两个电容和十个电阻构成,可同时实现低通、带通、高通、带阻和全通的滤波功能。给出了实现电路,并完成了计算机仿真。PSPICE仿真结果表明,所提出电路结构简单,灵敏度低。所有电容接地,便于全集成。

关键词: 模拟电路设计, 电流反馈放大器, 电压模式, 通用双二阶滤波器

Abstract:

A new voltage-mode universal biquad filter circuit using current-feedback operational amplifiers (CFOA) was presented.The circuit consisted of four CFOA,two capacitors and ten resistors which achieved all the five filter functions,such as low-pass,band-pass,high-pass,notch,and all-pass from the same configuration.Circuit implementation was given and a computer simulation of the circuit was completed.PSPICE simulation results show that the design of circuit has the characteristics of simple structure and low sensitivity.All the capacitors are grounded and the filter is suitable for fully integration.

Key words: analog circuit design, current-feedback operational amplifiers (CFOA), voltage-mode, universal biquad filter

中图分类号:

TN713

臧睦君, 王春悦, 冯进. 新颖的电压模式通用双二阶CFOA滤波器[J]. 吉林大学学报(工学版), 2013, 43(增刊1): 402-405.

ZANG Mu-jun, WANG Chun-yue, FENG Jin. Novel design of voltage-mode universal biquad CFOA filter[J]. 吉林大学学报(工学版), 2013, 43(增刊1): 402-405.

参考文献

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