Oregon State University

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Event Details

PhD Final Oral Examination – Brian Young

Monday, June 3, 2013 9:00 AM - 11:00 AM

Time-Based Noise-Shaping Techniques for Time-to-Digital and Analog-to-Digital Converters

In this thesis, time-based signal processing techniques and their applications in oversampling and noise-shaping data converters are examined. These techniques demonstrate the ability to shift the burden of high performance analog circuits from the compressed voltage-domain to the augmented time-domain. First, the potential of high order noise-shaping and phase-domain feedback in time-to-digital converters (TDCs) is explored. A prototype phase reference, second-order continuous-time delta-sigma TDC for sensor applications was fabricated in 90 nm CMOS and achieves 64 dB dynamic range in 1 MHz signal bandwidth. Second, an ultra-high performance oscillator-based delta-sigma modulator architecture is investigated. The proposed circuit is a third-order continuous-time oscillator-based delta-sigma ADC with simulated 77 dB SNDR in 40 MHz signal bandwidth with OSR of 16, and is fabricated in 65 nm CMOS.

Major Advisor: Pavan Hanumolu
Committee: Karti Mayaram
Committee: Un-Ku Moon
Committee: Gabor Temes
GCR: David Hackleman

Kelley Engineering Center (campus map)
Nicole Thompson
1 541 737 3617
Nicole.Thompson at oregonstate.edu
Sch Elect Engr/Comp Sci
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