Ternary-level thermometer C-DAC switching scheme for flash-assisted SAR ADCs

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A ternary-level thermometer capacitive digital-to-analog converter (C-DAC) switching scheme is proposed for flash-assisted successive-approximation register (FA-SAR) analog-to-digital converters (ADCs). By minimizing the capacitor reference switching operations of the C-DAC with the help of thermometer codes readily available from the assistant flash ADC, integral nonlinearity (INL) and differential nonlinearity (DNL), as well as C-DAC switching energy, are significantly improved from conventional switching schemes, which in turn makes near thermal-noise-limited capacitor designs feasible without complex capacitor weight calibrations
Publisher
IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
Issue Date
2015-05
Language
English
Article Type
Article
Citation

IEICE ELECTRONICS EXPRESS, v.12, no.10

ISSN
1349-2543
DOI
10.1587/elex.12.20150302
URI
http://hdl.handle.net/10203/200744
Appears in Collection
EE-Journal Papers(저널논문)
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