Floating-capacitance multiplier based on CCDDCCs and its application

Abstract

This paper proposes a new floating capacitance multiplier using three Current Control Differential Difference Current Conveyors (CCDDCCs) with CMOS technology and one grounded capacitor. The circuit can be electronically tuned through bias currents of CCDDCC without external resistor connections and temperature effects do not affected to the capacitance characteristic. The realization is suitable for further integration. The third-order elliptic LPF is included as an application. The simulations results of proposed capacitance multiplier and its applications are carried out by PSpice that agrees well with the theoretical expectations. © 2011 IEEE.