Advanced search options

Advanced Search Options 🞨

Browse by author name (“Author name starts with…”).

Find ETDs with:

in
/  
in
/  
in
/  
in

Written in Published in Earliest date Latest date

Sorted by

Results per page:

You searched for subject:(Analog Ciruits). One record found.

Search Limiters

Last 2 Years | English Only

No search limiters apply to these results.

▼ Search Limiters


Oregon State University

1. Maghari, Nima. Architectural compensation techniques for analog inaccuracies in ΔΣ analog-to-digital converters.

Degree: PhD, Electrical and Computer Engineering, 2010, Oregon State University

Delta-sigma analog-to-digital converters (ADCs) are suitable for many applications due to several advantages such as relaxed anti-aliasing filter, high signal-to noise and distortion ratio (SNDR) and most important of all, reduced sensitivity to analog imperfections.This thesis introduces several structures to overcome loop imperfections and stability issues in delta-sigma modulators. First, a new multi-loop delta-sigma modulator is proposed to combine the relaxed circuit requirements of single-loop modulators with the stability of traditional multi-loop modulators. Measurement results of the prototype IC confirmed with opamps with loop gain of less than 30dB, SNDR of over 74dB can be achieved. Also proposed is a new single-loop modulator using a delay-free two-step quantizer enabling the input signals beyond the full-scale range to be processed by the loop. The fabricated prototype IC achieves over 75dB SNDR by allowing signals up to +5dBFS input signals. Third, is a modified dual-slope ADC which achieves first-order quantization noise-shaping. Combined as the quantizer of a second-order delta-sigma loop, the fabricated prototype IC achieves third-order noise shaping with 78dB peak SNDR. Advisors/Committee Members: Moon, Un-Ku (advisor), Temes, Gabor (committee member).

Subjects/Keywords: Analog Ciruits; Analog-to-digital converters

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Maghari, N. (2010). Architectural compensation techniques for analog inaccuracies in ΔΣ analog-to-digital converters. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/18851

Chicago Manual of Style (16th Edition):

Maghari, Nima. “Architectural compensation techniques for analog inaccuracies in ΔΣ analog-to-digital converters.” 2010. Doctoral Dissertation, Oregon State University. Accessed November 17, 2019. http://hdl.handle.net/1957/18851.

MLA Handbook (7th Edition):

Maghari, Nima. “Architectural compensation techniques for analog inaccuracies in ΔΣ analog-to-digital converters.” 2010. Web. 17 Nov 2019.

Vancouver:

Maghari N. Architectural compensation techniques for analog inaccuracies in ΔΣ analog-to-digital converters. [Internet] [Doctoral dissertation]. Oregon State University; 2010. [cited 2019 Nov 17]. Available from: http://hdl.handle.net/1957/18851.

Council of Science Editors:

Maghari N. Architectural compensation techniques for analog inaccuracies in ΔΣ analog-to-digital converters. [Doctoral Dissertation]. Oregon State University; 2010. Available from: http://hdl.handle.net/1957/18851

.