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Main Defects of LC-Based ΣΔ Modulators

Ahmed Ashry 1 Hassan Aboushady 1 
1 CIAN - Circuits Intégrés Numériques et Analogiques
LIP6 - Laboratoire d'Informatique de Paris 6
Abstract : In this paper, the main defects of LC-based ΣΔ modulators due to process variations are presented. Resonance frequency shift of LC tank circuit, which was discussed is some publications, is shown to be one among many other possible defects that are discussed in this paper. The effect of each defect on modulator output spectrum is shown and discussed. It is suggested that the information extracted from the output spectrum can be used to calibrate the modulator main blocks.
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Ahmed Ashry, Hassan Aboushady. Main Defects of LC-Based ΣΔ Modulators. IEEE International Midwest Symposium on Circuits and Systems (MWSCAS'10), Aug 2010, Seattle, United States. pp.897-900, ⟨10.1109/MWSCAS.2010.5548654⟩. ⟨hal-00574529⟩



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