Three-input single-output current-mode universal filter using a single FDCCII and grounded passive components

This paper presents a current-mode universal filter with three-input single-output using a single fully differential current conveyor and all-grounded passive components. The use of all-grounded passive components makes the proposed circuit ideal for integrated circuit implementation. The proposed filter provides low-pass, band-pass, high-pass, band-stop and all-pass current responses into a single topology. The orthogonal control for the natural frequency and the quality factor of all filtering functions can be obtained by setting the values of passive components. The characteristics of the proposed filter can be confirmed using PSPICE simulators.