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ŠOTNER, R. SLEZÁK, J. PETRŽELA, J.
Original Title
Current Mode Tunable KHN Filter Based on Controlled MO-CFTAs
Type
conference paper
Language
English
Original Abstract
This paper deals with application of novel active block called multiple-output current follower transconductance amplifier (MO-CFTA) in multiple-loop structure of current mode active filter. The well-known transconductance amplifier (OTA) is modified in such a way that single-input multiple-output active block is obtained. Using this device in the suggested network structure allows us to achieve low pass (LP), high pass (HP), band pass (BP) and band reject (BR) filter. The effects of the parasitic properties of the active devices as well as biquad sensitivities are briefly discussed. The possibility of electronic tuning of the main parameters of the individual filter configuration is verified.
Keywords
current mode, state variable feedback structure, tunable biquad
Authors
ŠOTNER, R.; SLEZÁK, J.; PETRŽELA, J.
RIV year
2009
Released
7. 11. 2009
Location
Djerba, Tunis
ISBN
978-1-4244-4397-0
Book
3rd International Conference on Signals, Circuits and Systems SCS2009
Pages from
521
Pages to
524
Pages count
4
BibTex
@inproceedings{BUT32136, author="Roman {Šotner} and Josef {Slezák} and Jiří {Petržela}", title="Current Mode Tunable KHN Filter Based on Controlled MO-CFTAs", booktitle="3rd International Conference on Signals, Circuits and Systems SCS2009", year="2009", pages="521--524", address="Djerba, Tunis", isbn="978-1-4244-4397-0" }