A novel low-voltage low-power CCII based on super class AB CMOS OTA cells and filter application

Abstract

A new high-performance second generation CMOS current conveyor CCII is presented. The input stage of this circuit is based on a super class AB CMOS OTA cells. The proposed CCII is operated at low-voltage of ± 0.75V with a reduced power consumption of 230μW. All simulations are performed by TSPICE based on BSIM3v3 transistor model (level 49) for the TSMC 0.18μm CMOS process available from MOSIS. This circuit showed a good linearity over the dynamic range and an excellent accuracy. It has a low parasitic resistor at terminal X (RX=8.26Ω) and a very high input impedance at terminal Y. This novel circuit offers a 2.96GHz current transfer bandwidth and 3GHz voltage transfer bandwidth. Based on the CCII, we have implemented a bi-quadratic voltage mode filter. The simulation results of this filter are in a good agreement with the theoretical calculations.