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High-Input Impedance Voltage-Mode Universal Biquadratic Filter with One input and Five Outputs Using DDCCs

A new single input and five outputs voltage-mode universal biquadratic filter with high-input impedance using three plus-type differential difference current conveyors (DDCCs), two grounded capacitors and two resistors is presented. The proposed circuit offers the following features: realization of all the standard filter functions, that is, high-pass, band-pass, low-pass, notch, and all-pass filters simultaneously without component matching conditions, the use of only grounded capacitors and high-input impedance.