Title :
Grounded resistor controlled sinusoidal oscillator using CFOAs
Author :
Martinez, P.A. ; Sabadell, J. ; Aldea, C.
Author_Institution :
Fac. de Ciencias, Zaragoza Univ., Spain
fDate :
2/27/1997 12:00:00 AM
Abstract :
A new variable frequency sinusoidal oscillator configuration is proposed. Only two current feedback operational amplifiers (CFOAs), two grounded capacitors and three resistors are used. The frequency and condition of oscillation can be independently adjusted by means of single grounded resistors. Also, very high frequency operation is demonstrated and an example application of an oscillator which does not require an external capacitor presented
Keywords :
operational amplifiers; variable-frequency oscillators; VFO; current feedback op amp; current feedback operational amplifiers; grounded capacitors; grounded resistor controlled oscillator; sinusoidal oscillator; variable frequency oscillator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19970229
