Title :
High-frequency design of sinusoidal oscillators realised with operational amplifiers
Author :
Huertas, J.L. ; Rodriguez-Vazquez, A. ; Perez-Verdu, B.
Author_Institution :
Universidad de Sevilla, Departamento de Electricidad y Electronica, Sevilla, Spain
fDate :
8/1/1984 12:00:00 AM
Abstract :
The use of slew-rate models for designing RC active oscillators is discussed. It is shown that a precise modelling of the oscillator behaviour is obtained for frequencies beyond the ordinary application range of operational amplifiers. Based on that model, a design procedure is developed, and it is applied in the paper to the design of Wien-bridge oscillators, giving theoretical as well as practical results. Low-distortion oscillations may be obtained up to 100 kHz using standard operational amplifiers.
Keywords :
operational amplifiers; oscillators; 100 kHz; HF design; RC active oscillators; Wien-bridge oscillators; operational amplifiers; sinusoidal oscillators; slew-rate models;
Journal_Title :
Electronic Circuits and Systems, IEE Proceedings G
DOI :
10.1049/ip-g-1:19840028