Current-Feedback Op Amps

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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New analogue inverse filters realised with current feedback op-amps

International Journal of Electronics ◽

10.1080/00207217.2010.547812 ◽

2011 ◽

Vol 98 (8) ◽

pp. 1103-1113 ◽

Cited By ~ 16

Author(s):

S. S. Gupta ◽

D. R. Bhaskar ◽

R. Senani

Keyword(s):

Current Feedback ◽

Op Amps

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Universal Voltage-Mode/Current-Mode Biquad Filter Realised with Current Feedback Op-Amps

Frequenz ◽

10.1515/freq.1997.51.7-8.203 ◽

1997 ◽

Vol 51 (7-8) ◽

Cited By ~ 14

Author(s):

Raj Senani ◽

S. S. Gupta

Keyword(s):

Current Mode ◽

Current Feedback ◽

Voltage Mode ◽

Biquad Filter ◽

Op Amps

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CMOS technology and current-feedback op-amps

1993 IEEE International Symposium on Circuits and Systems ◽

10.1109/iscas.1993.692831 ◽

2005 ◽

Author(s):

E. Brutin

Keyword(s):

Cmos Technology ◽

Current Feedback ◽

Op Amps

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

International Journal of Bifurcation and Chaos ◽

10.1142/s0218127405013484 ◽

2005 ◽

Vol 15 (08) ◽

pp. 2551-2558 ◽

Cited By ~ 5

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.

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