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Voltage-mode, current-mode, transresistance-mode and transconductance-mode KHN-equivalent biquad employing third generation current conveyors (CCIII), realizes low pass, high pass, band pass, notch and all pass filters using grounded passive elements and provides current and voltage outputs and also facilitates tunability of filter parameters. Analysis of the proposed configuration is given that includes non-ideal analysis along with the sensitivity analysis for the used passive and active components. A comparison of the proposed structure with those few existing CCIII-based filters has also been detailed out. The workability of the proposed structure has been demonstrated with PSPICE simulation results.