VDCC based voltage mode Tow-Thomas biquad filter

In this paper, a new voltage mode Tow-Thomas biquad circuit is proposed. The proposed circuit employs two voltage differencing current conveyors (VDCC) as active element together with two capacitors and five resistors as passive elements. The tunability of center frequency and bandwidth has also been shown. The workability of the filter has been verified using PSPICE simulations.