Title :
Simulation of coupled tuned circuits using CFOAs
Author :
Deng, Jie ; Aronhime, Peter ; Maundy, Brent
Author_Institution :
Dept. of Electr. Eng., Louisville Univ., KY, USA
Abstract :
An active RC voltage-mode circuit that mimics the behavior at low frequency of a bandwidth-tunable bandpass filter as realized by a double-tuned circuit is converted to a current-mode circuit using commercially available current-feedback op amps. Analyses and simulations show that the new current-mode circuit can operate relatively accurately in the neighborhood of 300 kHz using passive elements determined by ideal analysis
Keywords :
active filters; circuit tuning; coupled circuits; feedback amplifiers; operational amplifiers; 300 kHz; CFOAs; bandwidth-tunable bandpass filter; coupled tuned circuits; current-feedback op amps; current-mode circuit; ideal analysis; passive elements; Band pass filters; Circuit simulation; Coupling circuits; Current mode circuits; Filtering theory; Poles and zeros; RLC circuits; Radio frequency; Transfer functions; Voltage;
Conference_Titel :
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-4455-3
DOI :
10.1109/ISCAS.1998.704170
