Chang, Chun-Ming, Al-Hashimi, Bashir M., Wang, C. L. and Hung, C. W.
A Single Fully Differential Current Conveyor Biquad Filters.
IEE Proceedings-Circuits, Devices and Systems
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Abstract: The authors present two new filter biquads based on the recently introduced fully differential current conveyor (FDCCII). The biquads employ a single FDCCII, two grounded resistors and two grounded capacitors, which are the minimum components, necessary to realize a 2nd-order filtering response (low-pass, high-pass, band-pass, band-reject, and all-pass). This is unlike the biquads reported in  which employ more active and passive components. Simulation results are included, validating the theoretical analysis.
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