Current-mode universal filter with four inputs and one output using CDTAs

Dumawipata, Teerasilapa; Tangsrirat, Worapong; Surakampontorn, Wanlop

doi:10.1109/APCCAS.2006.342185

Current-mode universal filter with four inputs and one output using CDTAs

Author(s)

Dumawipata, Teerasilapa

Tangsrirat, Worapong

Surakampontorn, Wanlop

Date Issued

December 1, 2006

Type

Conference Paper

DOI

10.1109/APCCAS.2006.342185

Abstract

A current-controlled multiple-input single-output current-mode universal filter employing current differencing transconductance amplifiers (CDTAs) as active elements is described. The proposed circuit offers the following attractive features: employment the minimum number of active and passive components; simultaneous realization of all the standard filtering functions; independent current-control of the parameters ω0 and ω0/Q; no requirement of component matching conditions; employment of only two grounded passive capacitors which is suitable for integrated circuit (IC) implementation; and low passive and active sensitivities. ©2006 IEEE.

Citation

IEEE Asia Pacific Conference on Circuits and Systems Proceedings Apccas, 892-895, 2006