Tunable Current-Mode Multifunction Filter Using Universal Current Conveyors

In the paper a novel current-mode multifunction filter is presented, where changing the characteristic frequency f₀ and the quality factor Q₀ independently of each other and of other parameters is allowed. The whole design procedure is shown, with the Generalized Current Conveyor (GCC) being used in the initial design and the resultant multifunction filter containing the universal current conveyor UCC-N1B. On the basis of measurement results of this element a simulation model in the OrCAD software for computer analysis of the properties of the filter designed was proposed.