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Title of Journal: Analog Integr Circ Sig Process

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Abbravation: Analog Integrated Circuits and Signal Processing

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Springer US

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DOI

10.1002/jnr.490410608

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ISSN

1573-1979

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Energyefficient and areaefficient trilevel floa

Authors: Hao Wang Zhangming Zhu Ruixue Ding
Publish Date: 2015/08/27
Volume: 85, Issue: 2, Pages: 373-377
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Abstract

In this letter a more energyefficient capacitor switching algorithm is proposed for successive approximation register analogtodigital converters By adopting floating capacitors and switching from the smallest one to the largest one rather than from the largest one to the smallest one the switching energy has been significantly reduced because the floating capacitors do not consume any power until they are switched Besides to add one bit the dummy capacitor is reused which is realized by C–2C structure instead of the unit capacitor C Compared to the conventional architecture the proposed capacitor switching method achieves 996  energy saving and 8721  capacitor area reduction respectively

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