A floating voltage-controlled linear resistor and its application to active RC filters

被引：15
作者：
AlRuwaihi, KM
机构：
[1] Department of Electrical Engineering, University of Bahrain
来源：
INTERNATIONAL JOURNAL OF ELECTRONICS | 1997年 / 82卷 / 05期
关键词：
D O I：
10.1080/002072197135869
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 floating voltage-controlled linear resistor that employs four identical small-dimension MOS transistors is presented. The proposed circuit utilizes only a single external voltage to control the active resistor through its full range. Simulation results using SPICE 3 show that the total harmonic distortion (THD) is less than -74 dB for signals up to 3.5 V peak-to-peak applied across the proposed floating resistor. Using MOS transistors with W/L of 2/4 mu m and 2/7 mu m, it has been possible to achieve resistances in the ranges 3-12.5 k Omega and 4.9-20 k Omega, respectively. The application of the proposed floating resistor to various active RC filters is discussed.
引用
收藏
页码：483 / 498
页数：16
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