Novel CMOS current feedback op-amp realization suitable for high frequency applications

2000 ◽  
Vol 47 (6) ◽  
pp. 918-921 ◽  
Author(s):  
A.M. Ismail ◽  
A.M. Soliman
Keyword(s):  
High Frequency ◽  
Current Feedback ◽  
Op Amp

AN EXPERIMENTAL STUDY ON CHAOTIC DYNAMICS OF CFOA-BASED SC-CNN CIRCUIT

2005 ◽  
Vol 15 (08) ◽  
pp. 2551-2558 ◽  
Author(s):  
ENIS GÜNAY ◽  
MUSTAFA ALÇI ◽  
FATMA YILDIRIM
Keyword(s):  
Neural Network ◽  
High Frequency ◽  
Chaotic Dynamics ◽  
Laboratory Experiments ◽  
Cellular Neural Network ◽  
Current Feedback ◽  
Op Amp ◽  
Op Amps ◽  
Experimental Implementation ◽  
High Frequency Performance

In this paper, an experimental implementation of State Controlled Cellular Neural Network (SC-CNN) circuit using Current Feedback Op Amp (CFOA) is presented and its chaotic dynamics including high frequency performance are investigated by laboratory experiments. Depending on its significant advantages over the conventional voltage op amps (VOAs), without imposing any restrictions, the CFOAs have been used instead of the VOAs in SC-CNN circuit. Experimental results have shown that the proposed implementation has a capacity of higher frequency operation.

EXPERIMENTAL STUDY OF CFOA-BASED INDUCTORLESS CHUA'S CIRCUIT

2004 ◽  
Vol 14 (04) ◽  
pp. 1369-1374 ◽  
Author(s):  
RECAI KILIÇ
Keyword(s):  
Experimental Study ◽  
High Frequency ◽  
Chaotic Behavior ◽  
Comparative Investigation ◽  
Experimental Setup ◽  
Chua’S Circuit ◽  
Current Feedback ◽  
Chua's Circuit ◽  
Op Amps ◽  
High Frequency Performance

The current feedback op amps (CFOAs), with some significant advantages over the conventional op amps, have been used instead of voltage op amps (VOAs) in new implementations of Chua's circuit. In our previous study, after providing a comparative investigation of CFOA-based realizations of Chua's circuit in the literature, we have also presented an alternative inductorless CFOA-based realization of Chua's circuit, and the circuit's chaotic behavior by Pspice simulations. In this paper, we investigate CFOA-based Chua's circuit by constructing an experimental setup, and testing the performance of the proposed implementation at different frequencies. Its excellent high frequency performance was experimentally verified.

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