Oregon State University

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PhD Oral Preliminary Examination – Sachin Rao


Wednesday, March 20, 2013 9:30 AM - 11:30 AM

Linearization Techniques for VCO-based ADCs
Voltage controlled oscillator (VCO) based ADCs possess several properties that make them highly desirable over conventional voltage domain ADCs. In addition to first order noise shaping the quantization noise, VCO ADCs provide anti-aliasing to the input signal. However, the SNDR of an open-loop VCO-based ADC is severely distortion limited by the voltage-to-frequency tuning characteristics of the VCO.

Various techniques have already been proposed to overcome the VCO non-linearity problem. This work examines each of the conventional approaches and points out their limitations. Two new VCO-ADC architectures are proposed that overcome the limitations of the conventional approaches.

Major Advisor: Pavan Hanumolu
Committee: Un-Ku Moon
Committee: Gabor Temes
Committee: Raviv Raich
GCR: Leonard Coop


Kelley Engineering Center (campus map)
3114
Nicole Thompson
1 541 737 3617
Nicole.Thompson at oregonstate.edu
Sch Elect Engr/Comp Sci
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