Independent tunable-Q/ω biquadratic filter employing only active elements

Author

Jongchanachavawat, Wirote ; Dejhan, Kobchai ; Chaisayun, Ittipong

Author_Institution

Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok

fYear

2006

fDate

Oct. 18 2006-Sept. 20 2006

Firstpage

1080

Lastpage

1083

Abstract

A new active-only biquadratic filter employing OTAs and OAs is introduced. This circuit is fully integrable, and programmable, and implements all the three filtering functions (low-pass, high-pass and band-pass). The filter offers low active sensitivities and its parameters omega and Q-factor can be separately tuned by electronic means through controlling the transconductance gains of the OTAs and insensitivity to temperature variations. The PSPICE simulation was carried out to realize the proposed circuit

Keywords

SPICE; band-pass filters; biquadratic filters; high-pass filters; low-pass filters; operational amplifiers; PSPICE simulation; Q-factor; band-pass filter; high-pass filter; independent tunable biquadratic filter; low-pass filter; operational amplifier; operational transconductance amplifier; Active filters; Band pass filters; Circuits; Filtering; Low pass filters; Q factor; SPICE; Temperature control; Temperature sensors; Transconductance;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Information Technologies, 2006. ISCIT '06. International Symposium on

Conference_Location

Bangkok

Print_ISBN

0-7803-9740-1

Electronic_ISBN

0-7803-9741-X

Type

conf

DOI

10.1109/ISCIT.2006.339944

Filename

4141383