Tunable frequency versatile filters implementation using minimum number of passive elements

被引：7
作者：
Jiang, Jinguang [1 ]
He, Yigang [2 ]
机构：
[1] Wuhan Univ, GNSS Res Ctr, Wuhan 430079, Hubei, Peoples R China
[2] Hunan Univ, Coll Elect & Informat Engn, Changsha 410082, Hunan, Peoples R China
来源：
ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2009年 / 59卷 / 01期
基金：
中国博士后科学基金; 国家高技术研究发展计划(863计划);
关键词：
Current-mode; Current conveyor (CCII); Operational-Transconductance Amplifier (OTA); Tunable frequency; Universal filter; 5TH-ORDER BESSEL FILTER; CONTINUOUS-TIME FILTER; ACTIVE CURRENT FILTER; CURRENT-MODE FILTER; CURRENT CONVEYOR; LADDER FILTERS; C FILTER; DESIGN; REALIZATION; BANDPASS;
D O I：
10.1007/s10470-008-9238-x
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Two new universal active current-mode filters are proposed, one topology of which is with three inputs and one output, the other prototype is with single input and three outputs counterpart. One proposed circuit employs two current conveyors, two grounded capacitors and two resistors, wherever the other proposed circuit employs two current conveyors, two grounded capacitors and two multi-input, multi-output Operational Transconductance Amplifiers(OTA) as variable resistor for tuning the cutoff frequency of realized filters. Without changing the passive elements, the proposed circuits employ features of multifunctional, convenient for integration, low sensitivities and simple in structure.
引用
收藏
页码：53 / 64
页数：12
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