Electronically tunable high-input impedance voltage-mode universal biquadratic filter based on simple CMOS OTAs

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dc.contributor.authorKumngern, Montree
dc.contributor.authorKnobnob, Boonying
dc.contributor.authorDejhan, Kobchai
dc.date.accessioned2026-08-06T10:00:54Z
dc.date.available2026-08-06T10:00:54Z
dc.date.issued2010-10-01
dc.description.abstractThis paper describes a new electronically tunable three inputs and single output voltage-mode universal biquadratic filter based on simple CMOS operational transconductance amplifiers (OTAs) and grounded capacitors. The proposed configuration provides lowpass, highpass, bandpass, bandstop and allpass voltage responses at a high impedance input terminal, which enable easy cascadability. Additionally, the circuit parameters ωo and Q can be set orthogonally by adjusting the transconductances and grounded capacitors. The filter also offers an independent electronic control of parameters ωo by adjusting the transconductance through the bias current/voltage of the OTA. For realizing all the filter responses, no critical component matching condition is required, and all the incremental parameter sensitivities are low. PSPICE simulation results are performed to confirm the theoretical analysis. © 2009 Elsevier GmbH. All rights reserved.
dc.identifier.citationAEU International Journal of Electronics and Communications, 64(10), 934-939, 2010
dc.identifier.doi10.1016/j.aeue.2009.07.015
dc.identifier.issn14348411
dc.identifier.other2-s2.0-77955852191
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/3235
dc.sourceAEU International Journal of Electronics and Communications
dc.subjectCMOS
dc.subjectElectronically tunable
dc.subjectOTA
dc.subjectUniversal filter
dc.subjectVoltage-mode
dc.titleElectronically tunable high-input impedance voltage-mode universal biquadratic filter based on simple CMOS OTAs
dc.typeArticle

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