Low-power C-R hybrid D/A conversion network for SAR A/D converter |
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| Authors: | X. Y. Tong F. X. Li |
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| Affiliation: | 1. School of Electronic Engineering, Xi’an University of Posts & Telecommunications, China; School of Electronic Engineering, Xi’an University of Posts & Telecommunications, Weiguo road, Xi’an, Shannxi, 710121, China
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| Abstract: | An energy-efficient D/A conversion structure combined with a splited unit-capacitor array and an intermittent-sleeping resistor string is presented for low power SAR A/D converter. The energy dissipation and the matching requirement of the D/A conversion network are researched based on Matlab modeling. And its superiority and applicability are proven by the realization of an 8-bit 200kS/s 25.6 μW 65 nm CMOS SAR A/D converter with this proposed D/A structure. |
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