A new current-mode active-only universal filter using CCCIIs

In this paper, a novel second order current-mode three-input single-output analog filter employing second-generation current controlled conveyor (CCCII) and only grounded components are presented. This filter can simultaneously realize low-pass, high-pass, band-pass, notch, all-pass by choosing the different inputs without changing the structure of the filter. The proposed filter offers electronic control of angular resonance frequency ω0. The filter has low active and passive component sensitivities. The inner structure of CCCII is given, and the simulation results have been carried out by PSPICE to verify the theory.