CCⅡ实现的全集成MOSFET－C连续时间滤波器  

Full integrated MOSFET-C continuous time filter by using CCⅡ

作　　者：袁助国[1] 杨志民[1] 

机构地区：[1]西北师范大学物理系

出　　处：《西北师范大学学报（自然科学版）》1995年第4期32-40,共9页Journal of Northwest Normal University(Natural Science)

基　　金：甘肃省教委科研资助

摘　　要：利用Ｃｚａｒｎｕｌ提出的ＭＯＳ电阻电路（ＭＲＣ）、Ⅱ型电流传送器（ＣＣⅡ）和电容Ｃ，构成了实现高阶连续时间滤波器的各种基本积木块──理想积分器、阻尼积分器及加权相加器等；其中由笔者首次给出基于ＣＣⅡ和ＭＲＣ的可集成阻尼积分器和加权相加器，并用所构成的基本块实现了一个基于ＣＣⅡ的通用二阶ＭＯＳＦＥＴ－Ｃ连续时间滤波器．这种滤波器不仅与基于运放的ＭＯＳＦＥｔ－Ｃ连续时间滤波器一样可以单片集成化，而且比后者具有更优越的高频性能．Circuit building blocks such as ideal integrator,lossy integrator and wighted summer that canbe used to rcalize high order continuous time filters are proposed in the poper.The blocks are realized byusing the MOS resistance circuit(MRC)proposed by Czarnul,CC Ⅱ and capacitor C. A general purposeCC Ⅱ based secon d order MOSFET-C continuous time filter is constructed by using the blocks.This kindof filter can be integrated in a monolithic chip and has better high frequency properties than OAP based filers.

关 键 词：电子电路 有源滤波器 全集成电路 电流传送器 

分 类 号：TN713[电子电信—电路与系统]