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Analysis of Mismatch Effects in Randomly Interleaved A/D Converter System
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Infineon, Sweden.
2005 (English)In: IEEE Transactions on Circuits And Systems Part I: Fundamental Theory and Applications, ISSN 1057-7122, E-ISSN 1558-1268, Vol. 52, no 3, 465-476 p.Article in journal (Refereed) Published
Abstract [en]

To significantly increase the sampling rate of an A/D converter (ADC), a time interleaved ADC system is a good option. The drawback of a time interleaved ADC system is that the ADCs are not exactly identical due to errors in the manufacturing process. This means that time, gain and offset mismatch errors are introduced in the ADC system. These errors cause non harmonic distortion in the sampled signal. One way to decrease the impact of the mismatch errors is to spread the distortion over a wider frequency range by randomizing the order in which the ADCs are used in the interleaved structure. In this paper we analyze how the spectrum is affected by mismatch errors in a randomly interleaved ADC system. We also discuss how the mismatch errors can be estimated.

Place, publisher, year, edition, pages
2005. Vol. 52, no 3, 465-476 p.
Keyword [en]
A/D conversion, Nonuniform sampling, Random sampling
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-46136DOI: 10.1109/TCSI.2004.8384334OAI: oai:DiVA.org:liu-46136DiVA: diva2:267032
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13

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Elbornsson, JonasGustafsson, Fredrik

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