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

页码：483 / 498

页数：16