Fully differential second-order filter

In this paper a new fully-differential lowpass/bandpass second-order filter is proposed. The proposed filter uses three fully-differential second-generation current-conveyors (FDCCII), four resistors and two capacitors, doesn't require any matching condition and enjoys independent tuning of the gain and the parameters /spl omega//sub o/, and /spl omega//sub o//Q. Experimental results are included.