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A 4 bit highly energy and area efficient SC SAR ADC based on a combinational technique with reduced reset energy
Microsystem Technologies ( IF 2.1 ) Pub Date : 2019-11-08 , DOI: 10.1007/s00542-019-04672-0
Pranati Ghoshal , Chanchal Dey , Sunit Kumar Sen

A combinational method, based on hybrid and junction splitting techniques, is used to realize a 4 bit high energy efficient SC SAR ADC. The hybrid switching scheme is very energy efficient in which the first three comparison cycles do not consume any energy. In junction split technique, the total value of capacitors does not remain constant. Rather capacitors are appended as bits are being determined successively. The present method combines the features of these two methods to realize an even more energy efficient SC SAR ADC. Reset energy, in some cases, can seriously impact the overall efficiency of a SC SAR ADC. A study has been made about the normal reset energy and two step reset energy for the different cases. A table has been drawn to show the overall energy efficiency for normal conversion, conversion with single step reset and lastly conversion with two step reset for all the architectures.



中文翻译:

基于降低复位能量的组合技术的4位高能效和面积高效SC SAR ADC

基于混合和结分离技术的组合方法用于实现4位高能效SC SAR ADC。混合开关方案非常节能,其中前三个比较周期不消耗任何能量。在结分裂技术中,电容器的总值不会保持恒定。当位被连续确定时,将附加电容器。本方法结合了这两种方法的特征,以实现更加节能的SC SAR ADC。在某些情况下,复位能量会严重影响SC SAR ADC的整体效率。已经针对不同情况对正常复位能量和两步复位能量进行了研究。绘制了表格以显示正常转化的总体能效,

更新日期:2019-11-08
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