Abstract

A novel three inputs and single output current-mode universal biquadratic filter with high input and high-output impedance using three plus-type differential difference current conveyors, grounded capacitors and resistors is presented. The proposed circuit offers the following features: realization of all the standard filter functions that is high pass, bandpass, lowpass, notch and all pass filters, no requirements for component matching conditions, the use of only grounded capacitors and resistors, high input and high output impedance and low active and passive sensitivities.

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