Current-mode universal filter using FDCCII

Abstract

This paper presents a new current-mode universal filter with multiple-input multiple-output employing only one fully differential current conveyor, two grounded capacitors and two grounded resistors. The proposed filter can simultaneously realize of low-pass, band-pass, high-pass, band-stop and all-pass current responses into one single topology and absent passive component-matching conditions. The natural frequency and the quality factor of all filters can be controlled orthogonally by setting the value of passive components. The circuit also offers low active and passive sensitivities. The workability of the proposed circuit is confirmed by PSPICE simulation results.