A new OTA-C current-mode biquad filter with single input and multiple outputs

被引：23
|
作者：
Wang Chunhua [1 ]
Zhou Ling [1 ]
Li Tao [1 ]
机构：
[1] Hunan Univ, Sch Comp & Commun, Changsha 410082, Peoples R China
来源：
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS | 2008年 / 62卷 / 03期
基金：
中国国家自然科学基金;
关键词：
filter; current-mode circuit; operational transconductance amplifier;
D O I：
10.1016/j.aeue.2007.03.017
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new current-mode biquad-filtering circuit with single input and multi-outputs based on operational transconductance amplifier (OTA) is presented using three OTAs, two grounded capacitors and one grounded resistor, it can simultaneously realize second-order lowpass, bandpass, highpass, notch and allpass filters. The characteristic parameters can be adjusted orthogonally by a bias current of OTA and all capacitors are gounded. Morever, the circuit enjoys low sensitivities. (c) 2007 Elsevier GmbH. All rights reserved.
引用
收藏
页码：232 / 234
页数：3
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