High output-impedance current-mode third-order quadrature oscillator based on CCCCTAs

This article presents a 3 rd order current-mode quadrature oscillator using current controlled current conveyor transconductance amplifiers (CCCCTAs) as active elements. The proposed circuit is realized from a non-inverting lossless integrator and an inverting second-order lowpass filter. The oscill...

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Bibliographic Details
Published inTENCON 2009 - 2009 IEEE Region 10 Conference pp. 1 - 4
Main Authors Lawanwisut, S., Siripruchyanun, M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2009
Subjects
Capacitors
ccccta
Circuit simulation
current-mode
Energy consumption
Filters
Frequency
Impedance
oscillator
Oscillators
Resistors
SPICE
Transconductance
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ISBN9781424445462
1424445469
ISSN2159-3442
DOI10.1109/TENCON.2009.5395961

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Summary:This article presents a 3 rd order current-mode quadrature oscillator using current controlled current conveyor transconductance amplifiers (CCCCTAs) as active elements. The proposed circuit is realized from a non-inverting lossless integrator and an inverting second-order lowpass filter. The oscillation condition and oscillation frequency can be electronically/orthogonally controlled via input bias currents. The circuit description is very simple, consisting of merely 2 CCCCTAs and 2 grounded capacitors. Without any external resistors and using only grounded elements, the proposed circuit is then suitable for IC architecture. Due to high-output impedances, the proposed circuit is enable easy cascading in current-mode. The PSPICE simulation results are depicted, and the given results agree well with the theoretical anticipation. The power consumption is approximately 2.43 mW at ±3 V supply voltages.
ISBN:9781424445462
1424445469
ISSN:2159-3442
DOI:10.1109/TENCON.2009.5395961