Design of high-performance tunable filters based on current conveyors

Extra features are added to the conventional CCII in order to extend the use of CCII-based filters to high-performance applications in submicron CMOS technologies. They include continuous programming of current gain and fully balanced low voltage low power operation in moderate inversion region. Measurement results of a biquad fabricated in a 0.5-/spl mu/m CMOS process are included that validate the proposed approach.