DocumentCode
2778839
Title
Electronically tunable first-order all pass sections using OTAs
Author
Tsukutani, Takao ; Tsunetsugu, Hideki ; Sumi, Yasuaki ; Yabuki, Noboru
Author_Institution
Dept. of Electr. Eng., Matsue Coll. of Technol., Matsue, Japan
fYear
2010
fDate
5-8 Dec. 2010
Firstpage
548
Lastpage
551
Abstract
This paper introduces electronically tunable voltage-mode and current-mode first-order all pass sections (APSs) employing operational trans-conductance amplifiers (OTAs) and grounded capacitor. The circuits can realize two all pass characteristics by choosing the current output of the OTA. Additionally, the circuit parameters ω0 and H can be set independently through adjusting the bias currents of the OTAs electronically. Some examples are given together with simulated results by PSPICE.
Keywords
all-pass filters; operational amplifiers; APS; OTA; current-mode first-order all pass section; electronically tunable first-order all pass section; grounded capacitor; operational transconductance amplifier; voltage-mode first-order all pass section; Capacitors; Gain; Integrated circuit modeling; Oscillators; SPICE; Transconductance; Tuning; Active Circuit; All Pass Characteristic; CMOS Technology; Electronic Tuning; OTA;
fLanguage
English
Publisher
ieee
Conference_Titel
Computer Applications and Industrial Electronics (ICCAIE), 2010 International Conference on
Conference_Location
Kuala Lumpur
Print_ISBN
978-1-4244-9054-7
Type
conf
DOI
10.1109/ICCAIE.2010.5735141
Filename
5735141
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