Filter Using Current-Controlled Conveyors and Grounded Capacitors
Worapong Tangsrirat and Wanlop Surakampontorn
A current controllable current-mode universal filter with four inputs and one output employing multi-output current-controlled current conveyors (MOCCCIIs) is described. The proposed circuit offers the following attractive features: employment the minimum number of active and passive components; simultaneous realization of all the standard filtering functions; independent current-control of the parameters ωo and ωo/Q; no requirement of component matching conditions; employment of only two grounded passive capacitors which is suitable for integrated circuit (IC) implementation; and low passive and active sensitivities.
Keywords: Universal filter, current-controlled conveyor, current-mode circuit.