Four canonical current-mode biquads using single current conveyor

Four new filter configurations which employ single DO-CCII are proposed. The proposed filters operate in current mode (CM). The filters are canonical in the number of capacitors (2) and resistors (2). Depending on the choice of the type of four passive components, each filter structure can realize either the band-pass, low-pass or high-pass responses all at high impedance outputs. No difference terms appears in the denominators of the transfer functions. Therefore, the filters are always stable. Further, they enjoy low sensitivities. The validity of each filter is verified through PSpice simulations