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Single VDCC-based current-mode universal biquadratic filter

TitleSingle VDCC-based current-mode universal biquadratic filter
Publication TypeConference Proceedings
Year of Publication2558
Editorปัณณวิชญ์ ภัทร์สรณ์สิริ
Conference Name2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)
Date PublishedFebruary 2016
Conference LocationChiang Mai, Thailand
ISBN Number978-1-4673-7863-5
Accession Number15790675
Keywordsbiquadratic filter, current-mode circuit, voltage differencing current conveyor (VDCC)

This paper presents a novel three-input single-output current-mode universal biquadratic filter using only one voltage differencing current conveyor (VDCC) and three grounded passive components. The proposed circuit can realize low-pass (LP), band-pass (BP), high-pass (HP), band-stop (BS), and all-pass (AP) biquadratic functions. The natural angular frequency (ωo) and the quality factor (Q) can be tuned orthogonally by varying the circuit components. The proposed configuration has a low component count, low active and passive sensitivities and suitability to be integrated circuit implementation. PSPICE simulation results using TSMC 0.18 μm CMOS process parameters are included, which show good agreement with the theoretical predictions.