Variable Q all-pass, notch and band-pass filters using single CCII

Few novel configurations for realizing voltage-mode(VM) variable Q all-pass, notch and band-pass filters using a single second generation current conveyor (CCII) have been reported in this paper. The present configurations offers all-pass, notch and band-pass filters of desired Q, adjustable band-width by proper design. The circuits for all-pass/notch functions use only one CCII, four to five resistors and three to four capacitors, while for the band pass filter these reduces considerably. The simulated results are found in good agreement with theoretical analysis.