Single-input five-output electronically tunable current-mode biquad consisting of only ZC-CFTAs and grounded capacitors

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dc.contributor.authorSatansup, Jetsdaporn
dc.contributor.authorTangsrirat, Worapong
dc.date.accessioned2026-08-06T10:03:33Z
dc.date.available2026-08-06T10:03:33Z
dc.date.issued2011-12-14
dc.description.abstractThis paper presents an electronically tunable current-mode biquadratic filter constructing with four Z-copy current follower transconductance amplifiers (ZC-CFTAs) and only two grounded capacitors. The presented filter can realize all the five standard biquadratic functions simultaneously without requiring any component matching conditions and connecting any relevant output currents. The circuit has one low-impedance input and five highimpedance outputs, resulting in easy cascadability in current-mode. Also, the developed circuit exhibits the advantage of non-interactive electronic control of the natural angular frequency (ω<inf>0</inf>) and the quality factor (Q{script}) along with low incremental active and passive sensitivities. Computer simulation results using PSPICE program are given to confirm the validity of the theoretical prediction and to point out the attractive performance of the circuit.
dc.identifier.citationRadioengineering, 20(3), 650-655, 2011
dc.identifier.issn12102512
dc.identifier.other2-s2.0-83155191200
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/3987
dc.sourceRadioengineering
dc.subjectBiquad filter
dc.subjectCurrent-mode circuit
dc.subjectElectronically tunable
dc.subjectZ-copy current follower transconductance amplifier (ZC-CFTA)
dc.titleSingle-input five-output electronically tunable current-mode biquad consisting of only ZC-CFTAs and grounded capacitors
dc.typeArticle

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