A Novel CMOS CCCII Based on Cross-Coupled Differential Transistor Pair and Its Application

Abstract

In this paper, a novel CMOS circuit of second-generation current controlled conveyor (CCCII) is proposed, which offers wide input voltage range and large 3 dB bandwidth of voltage-current transfer gain with high linearity under low supply voltage. The core of this CCCII adopts cross-coupled differential transistor pair as input stage instead of conventionally source-coupled and the principle of the circuit is analyzed theoretically in detail. This CCCII is implemented by PSPICE program in TSMC 0.18 lm RF CMOS technology and verified by simulation results. A current-mode universal filter which consists of two proposed CMOS CCCIIs is also simulated to validate the feasibility of the new circuit topology.