Implementation of Oscillator Using Current Controlled Current Conveyor at 120nm Technology

Abstract

Current Conveyors have been used as a basic building block in a variety of electronic circuit in instrumentation andcommunication systems. Today they replace the conventional OPAMP in so many applications such as active filters, oscillators, analogsignal processing and A/D, D/Convertors. Current conveyor is a high performance analog circuit design block based on currentmode and voltage mode approach. It is basically a unity gain element that exhibits high linearity, wide dynamic range, highbandwidth and better high frequency performance. The current conveyor is a combination of voltage as well as current follower.Current conveyor has the advantages of a wide current and voltage bandwidths. We use a translinear configuration for first,second and third generation current conveyor. Here, Sinusoidal oscillator by using CCI CCII and CCIII perform good accuracy andfrequency response at 1.5V supply voltage. The current conveyor is simulated in terms of voltage offset, current offset, currentbandwidth and voltage bandwidth in 120nm CMOS technology using TANNER Tools.