简介:Inthispaper,firstlywedemonstratetheuseofnodaladmittancematrixtoconvertalow-passband-passfilterbasedonoperationalamplifier(op-amp)toacircuitbasedonasecond-generationcurrentconveyor(CCII).Thistechniqueallowsustogeteightpresumptionsoffiltercircuits.Secondly,wepresentanovelarchitecturecircuitofCCII,whichcanoperateatlowsupplyvoltageof±0.75V.AllsimulationsareperformedbyTSPICEmodels.ThesimulationresultsshowthatthiscircuithasalowimpedanceatterminalX(RX=1.01Ω),averyhighinputimpedanceatterminalY,andwidebandwidthcurrentandvoltage.Thecenterfrequencyoftheproposedfilterisvariableontheinterval[157kHz,196MHz].