Floating capacitance multiplier circuit using full-balanced voltage differencing buffered amplifiers (FB-VDBAs)

This paper presents the resistor-less realization of a floating capacitance multiplier circuit using full-balanced voltage diffrencing buffered amplifiers (FB-VDBAs) as active components. The presented capacitance simulator contains only two FB-VDBAs together with a single grounded capacitor without any passive resistors. The equivalent capacitance value of the realized capacitance simulator can be tuned electronically by controlling the transconductance values of the FB-VDBAs. Anapplicatlon of the proposed tunable capacitance multiplier in realizing the RLC bandpass filter is also. Simulations by PSPICE program for standard 0.35-pm BICMOS process parameter shave been provided to verify the theory.