Three-input single-output voltage-mode universal filter using single FDCCII

This paper presents a new voltage-mode three-input single-output universal filter using fully differential current conveyor (FDCCII) as an active element. The circuit is consisted of only one FDCCII, two capacitors, two resistors which can realize high-pass, band-pass, low-pass, band-stop and all-pass voltage responses into a single topology. The natural frequency and the quality factor of all filters can be controlled orthogonally by setting the value of passive components. The characteristics of the proposed filter are verified by PSPICE simulators.