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A 3.3 V Current-Controlled √-Domain Oscillator

Mulder, J; Serdijn, WA; Van Der Woerd, AC; Van Roermund, AHM; (1998) A 3.3 V Current-Controlled √-Domain Oscillator. Analog Integrated Circuits and Signal Processing , 16 (1) pp. 17-28. 10.1023/A:1008213800617.

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Abstract

In this paper, the strong inversion MOS analog of the recently proposed class of log-domain filters, or translinear filters, is proposed.The dynamic √-domain principle, or dynamic voltage-translinear principle, exploits the quadratic law, describing the MOS transistor in the strong inversion region, both to perform an expanding V-I conversion of the capacitor voltages and to implement multiplications and square roots of currents based on the voltage-translinear principle.The presented theory is applied to the design of a current-controlled two-integrator oscillator. Experiment results of a pure CMOS test IC show the feasibility of the √-domain principle. The realized oscillator has a THD of -42 dB and is linearly frequency tunable across 1.3 decades.

Type: Article
Title: A 3.3 V Current-Controlled √-Domain Oscillator
DOI: 10.1023/A:1008213800617
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/1528376
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