Title :
Current feedback amplifiers based sinusoidal oscillators
Author :
Celma, S. ; Carlosena, A. ; Martinez, Philip A.
Author_Institution :
Fac. de Ciencias, Zaragoza Univ., Spain
fDate :
30 May-2 Jun 1994
Abstract :
This paper illustrate the use of a new class of amplifiers known as `current feedback amplifiers´ as the active devices in sinusoidal oscillators. From theoretical analysis, supported by experiments, it is concluded that they offer improved performance, with respect to their opamp based counterparts in terms of frequency accuracy, dynamic range, distortion level and frequency span. At the same time they seem to be more flexible for the inclusion of automatic gain control schemes
Keywords :
automatic gain control; bridge circuits; feedback amplifiers; feedback oscillators; network analysis; AGC; Wien bridge oscillator; automatic gain control schemes; current feedback amplifiers; distortion level; dynamic range; frequency span; sinusoidal oscillators; Bandwidth; Bridge circuits; Equations; Feedback amplifiers; Oscillators; Radio frequency; Radiofrequency amplifiers; Resistors; Strontium; Voltage;
Conference_Titel :
Circuits and Systems, 1994. ISCAS '94., 1994 IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-1915-X
DOI :
10.1109/ISCAS.1994.409311
