SOME STUDIES ON OTA-C OSCILLATORS

Abstract

Sinusoidal oscillators are important building blocks of many instrumentation, communication, measurement and control systems. The realisation of sinusoidal oscillators has attracted the attention of researchers in the area of analog signal processing since long. Their use has been very well documented in many standard texts in these areas. IC Op-Amps were the main building blocks for the realisation of sinusoidal oscillators during the decades of seventies and eighties. A variety of aspects related to the analysis, synthesis and design of Op-Amp-based sinusoidal oscillators has been investigated in numerous publications spread over this period. With the emergence of other active building blocks namely Operational Transconductance Amplifiers, Current Feedback Operational Amplifiers, Current Conveyors and their different derivatives, Four terminal Floating Nullors, Operational Transresistance Amplifiers etc.,both in discrete form as well as in integrable form, these blocks have also been...