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Effects of capacitors non-idealities in un-even split-capacitor array SAR ADCs

Opened Access Effects of capacitors non-idealities in un-even split-capacitor array SAR ADCs

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Autor: Fiorelli, Rafaella
Guerra Vinuesa, Oscar
Río Fernández, Rocío del
Rodríguez Vázquez, Ángel Benito
Departamento: Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo
Fecha: 2016
Tipo de documento: Ponencia
Resumen: This paper studies the effects of capacitors non-idealities in the performance of un-even split-capacitor SAR ADCs. Also, election of the m and l bits of MSB and LSB capacitors banks, respectively, is studied to reduce SAR errors.To exemplify and quantify the non-idealities, MOM capacitors are used. In particular, MOM layout parasitics and effective capacitor’s value is obtained with an electrical extraction tool using a flattened view of the MOM. Effects of capacitors layout placement in the SAR and their surroundings in the effective capacitance value are quantified. A quantitative study of a 10-bit un-even split-capacitor SAR is done for different combinations of m and l bits. Finally, a qualitative set of guidelines to choose the distribution of these bits is listed.
Tamaño: 646.2Kb
Formato: PDF

URI: https://hdl.handle.net/11441/74455

DOI: 10.1109/DCIS.2015.7388595

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