A novel "Follow the master" filter

Active-R filters have their pole-frequencies directly dependent on the gain-bandwidth (GB) product of the operational amplifiers used. A novel technique, by which the pole-frequencies of the system are made to depend on a stable reference-frequency times the ratio of the GB products, rather than the...

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Bibliographic Details
Published in:Proceedings of the IEEE 1977-01, Vol.65 (12), p.1725-1726
Main Authors: Rao, K.R., Sethuraman, V., Neelakantan, P.K.
Format: Article
Language:English
Subjects:
Attenuators
Detectors
Frequency
Low pass filters
Monolithic integrated circuits
Operational amplifiers
Phase detection
Temperature sensors
Thermistors
Voltage
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Summary:Active-R filters have their pole-frequencies directly dependent on the gain-bandwidth (GB) product of the operational amplifiers used. A novel technique, by which the pole-frequencies of the system are made to depend on a stable reference-frequency times the ratio of the GB products, rather than their absolute values, is given.
ISSN:0018-9219
1558-2256
DOI:10.1109/PROC.1977.10816