CMOS Digitally Programmable Inductance

A CMOS digitally programmable active lossless inductor realization is proposed. The proposed inductor is based on current and voltage followers and uses R-2R ladder to provide digital tuning of the inductance value. The followers support the use of the simulated inductor for applications in few MHz range. Whereas the use of R-2R provide an additional advantage of realizing high inductance value suitable for very low frequency applications. The proposed inductor is used in synthesizing cascadable biquadratic filters. Simulation results are presented

Universal current-controlled current-mode filter using the multiple-output translinear current conveyor

A new current-mode universal filter is proposed. The filter uses three multiple-output current-controlled translinear current-conveyors (CCCII) and can simultaneously realise lowpass, highpass and bandpass responses. Realisation of notch and allpass responses is feasible. The parameters ω0, ω0/Q0. and the bandpass gain can be controlled by adjusting the bias currents of the CCClls. The proposed circuit enjoys low sensitivities

Universal current-controlled current-mode filter using the multiple-output translinear current conveyor

A new current-mode universal filter is proposed. The filter uses three multiple-output current-controlled translinear current-conveyors (CCCII) and can simultaneously realise lowpass, highpass and bandpass responses. Realisation of notch and allpass responses is feasible. The parameters ω0, ω0/Q0. and the bandpass gain can be controlled by adjusting the bias currents of the CCClls. The proposed circuit enjoys low sensitivities