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Design of a Continuous Time Sigma Delta Analog-to-Digital Converter for Operation in Extreme Environments


Abstract In this work, a high resolution analog-to-digital converter (ADC) for use in harsh environments is presented. The ADC is implemented in bulk CMOS technology and is intended for space exploration, mining and automotive applications with a range of temperature variation in excess of 250°C. A continuous time (CT) sigma delta modulator employing a cascade of integrators with feed forward (CIFF) architecture in a single feedback loop topology is used for implementing the ADC. In order to enable operation in the intended application environments, an RC time constant tuning engine is proposed. The tuning engine is used to maintain linearity of a 10 ksps 20 bit continuous time sigma delta ADC designed for spectroscopy applications in space. The pro... (more)
Created Date 2011
Contributor Anabtawi, Nijad (Author) / Barnaby, Hugh (Advisor) / Vermeire, Bert (Committee member) / Gildenblat, Gennady (Committee member) / Chae, Junseok (Committee member) / Arizona State University (Publisher)
Subject Electrical Engineering / Analog Integrated Circuits
Type Doctoral Dissertation
Extent 109 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note Ph.D. Electrical Engineering 2011
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis