DESIGN AND REALIZATION OF A SINGLE STAGE SIGMA-DELTA ADC WITH LOW OVERSAMPLING RATIO

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" DESIGN AND REALIZATION OF A SINGLE STAGE SIGMA-DELTA ADC WITH LOW OVERSAMPLING RATIO "

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	149392
Doc. No	:	ET21184
Main Entry	:	Yongjie Cheng
Title Proper	:	DESIGN AND REALIZATION OF A SINGLE STAGE SIGMA-DELTA ADC WITH LOW OVERSAMPLING RATIO
Note	:	This document is digital این مدرک بصورت الکترونیکی می باشد
Abstract	:	Due to the rapid growth of the communication market, a large amount of researchis in process toward a high speed and high resolution sigma-delta A/D converter. Thisdissertation focuses on the design of a single-stage sigma-delta AID converter with verylow oversampling ratio for the wireless application. An architecture for a multibit single-stage delta-sigma A/D converter with two-step quantization is proposed. Both the MSBand LSB signals produced by the two-step quantization are fed back simultaneously to allintegrator stages, making it suitable for low oversampling ratios. The two-step ADCavoids the problem that the complexity of an internal flash ADC increases exponentiallywith each added bit. A segmented architecture with coarselfine DEM and DAC is.
Subject	:	Electericl tess
	:	برق
electronic file name	:	TL44336.pdf
Title and statement of responsibility and	:	DESIGN AND REALIZATION OF A SINGLE STAGE SIGMA-DELTA ADC WITH LOW OVERSAMPLING RATIO [Thesis]