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2006•Unpublished venueRequires access

Current-mode Active-only Universal Filter

Pipat Prommee, Montree Kumngern, Kobchai Dejhan

Open publisher page 3 citations

Abstract

A universal current-mode active-only filter using the biquadratic transfer function is proposed. The proposed circuit is realized by minimized active-only components count without external passive elements. The different kinds of filter function as lowpass, highpass, bandpass and band-reject response can be obtained without changing circuit topology. The proposed circuit is realized by using MOS transistors, OTAs, and op amps. The parameters omegaPcan be electronically tuned through adjusting the transconductance gains of the OTA and QPcan be tuned by changing of their components without effect to omegaP. The simulation results are given by PSpice

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What this paper is about

A universal current-mode active-only filter using the biquadratic transfer function is proposed. The proposed circuit is realized by minimized active-only components count without external passive elements. The different kinds of filter function as lowpass, highpass, bandpass and band-reject response can be obtained without changing circuit topology. The proposed circuit is realized by using MOS transistors, OTAs, and op amps. The parameters omegaPcan be electronically tuned through adjusting the transconductance gains of the OTA and QPcan be tuned by changing of their components without effect to omegaP. The simulation results are given by PSpice

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Available abstract

A universal current-mode active-only filter using the biquadratic transfer function is proposed. The proposed circuit is realized by minimized active-only components count without external passive elements. The different kinds of filter function as lowpass, highpass, bandpass and band-reject response can be obtained without changing circuit topology. The proposed circuit is realized by using MOS transistors, OTAs, and op amps. The parameters omegaPcan be electronically tuned through adjusting the transconductance gains of the OTA and QPcan be tuned by changing of their components without effect to omegaP. The simulation results are given by PSpice

Key concepts: Band-pass filter, Transconductance, High-pass filter, Topology (electrical circuits), Filter (signal processing), Function (biology), Computer science, Transfer function

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