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Author: search.filters.author.Angkeaw, KritSubject: search.filters.subject.Active-only

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    Low-component-count current-mode universal filter based on active-only lossy and lossless integrators
    (2008-12-01)
    Somdunyakanok, Montri
    ;
    Angkeaw, Krit
    ;
    Prommee, Pipat
    ;
    Kumngern, Montree
    An universal current-mode active-only filter using the biquadratic transfer function is proposed. The proposed circuit is realized by lossy and lossless integrators with minimize active components count without external passive elements. The different kinds of filter functions as lowpass, highpass, bandpass and band-reject response can be obtained without changing circuit topology. The proposed circuit implementation is realized by using MOS transistors, CMOS MO-OTAs, and CMOS OPAMPs. The parameters ω<inf>p</inf> can be tuned electronically through adjusting the transconductance gains of the OTA or electronic resistor power supplies. The simulation results are given by PSpice. © 2008 IEEE.