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Low-power parasitic-insensitive switched-capacitor integrator for delta-sigma ADCs

TitleLow-power parasitic-insensitive switched-capacitor integrator for delta-sigma ADCs
Publication TypeJournal Article
Year of Publication2010
AuthorsWang, T., and G. C. Temes
JournalElectronics Letters
Volume46
Issue16
Pagination1114 - 1116
Date Published08/2010
ISSN00135194
Abstract

A low-power parasitic-insensitive switched-capacitor (SC) integrator is proposed for ΔΣ ADCs. Compared to the conventional SC integrator, the new one achieves much lower power dissipation for the same sampling noise specification. A cancellation technique is used to reduce the nonlinearity of the integrator. An effective ΔΣ ADC topology is described which can incorporate the new integrator. Simulation shows that high linearity can be achieved by the new integrator, while consuming very low power.

DOI10.1049/el.2010.1347
Short TitleElectron. Lett.