Novel electronically controllable current-mode universal biquad filter

Abstract

A novel electronically-controllable universal current-mode biquad realisable with only three multiple-output second generation Current-Controlled Conveyors (CCCII), two grounded capacitors and one grounded resistor (which can also be implemented electronically) is presented which offers a number of advantageous features, not available simultaneously in any of the previously known electronically-controllable single-input-multiple-output type CM universal CCCII-based biquads. The proposed circuit is eminently suitable for implementation in both bipolar and CMOS/BiCMOS technologies. The workability of the new biquad configuration has been demonstrated by SPICE simulation results. © 2004, The Institute of Electronics, Information and Communication Engineers. All rights reserved.