D
D.A. Badillo
Researcher at Motorola
Publications - 4
Citations - 81
D.A. Badillo is an academic researcher from Motorola. The author has contributed to research in topics: CMOS & Phase noise. The author has an hindex of 4, co-authored 4 publications receiving 79 citations.
Papers
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Proceedings ArticleDOI
Comparison of contemporary CMOS ring oscillators
D.A. Badillo,Sayfe Kiaei +1 more
TL;DR: In this paper, measured data and analysis, accurately comparing three, four-stage ring oscillators, including linear source coupled, and two saturating types, are presented for phase noise, power consumption and tuning range.
Proceedings ArticleDOI
1.5V CMOS current reference with extended temperature operating range
TL;DR: A modified bandgap current reference is introduced that overcomes this limitation by placing a natural device (V/sub th/ /spl sim/ 0V) level shift stage between the amplifier and the bandgap.
Proceedings ArticleDOI
A low phase noise 2.0 V 900 MHz CMOS voltage controlled ring oscillator
D.A. Badillo,Sayfe Kiaei +1 more
TL;DR: A CMOS voltage controlled ring oscillator with quadrature output is presented, designed in a 0.18 /spl mu/m CMOS process and operates on a 2.0 V supply.
Proceedings ArticleDOI
A novel low phase noise 1.8V 900MHz CMOS voltage controlled ring oscillator
D.A. Badillo,Sayfe Kiaei +1 more
TL;DR: A 900MHz CMOS voltage controlled ring oscillator with quadrature output is presented and has a phase noise of -109dBc/Hz at a frequency offset of 600kHz.