Title :
Effects and compensation of gain bandwidth in the state variable filter
Author :
Oksasoglu, Ali ; Huelsman, Lawrence P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA
Abstract :
The effects of operational amplifier gain bandwidth (GB) on the performance of a state variable filter are considered. Third- and fifth-order models for these effects are generated and compared. A method of compensating for the effects of GB is developed, and examples of its use are given. It is shown that the compensation is possible even for high-Q and low-GB cases
Keywords :
active filters; compensation; poles and zeros; active RC filter; compensation; dominant poles; fifth-order models; operational amplifier gain bandwidth; state variable filter; third order model; Active filters; Band pass filters; Bandwidth; Circuits; Differential equations; Frequency domain analysis; Laplace equations; Operational amplifiers; Performance gain; Transfer functions;
Conference_Titel :
Circuits and Systems, 1991., Proceedings of the 34th Midwest Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-0620-1
DOI :
10.1109/MWSCAS.1991.251954
