A 92.1% area-efficient charge sharing switching scheme with near zero reset energy for SAR ADCs
2019
This paper presented a highly energy-efficient and area-efficient capacitor switching scheme with near zero reset energy for successive approximation register analog-to-digital converters. A hybrid switching scheme and a single-side dummy capacitor charge sharing method are proposed for the determination of multiple high bits and the low three bits, respectively. Based on the asymmetric capacitance array, the proposed switching scheme achieves 99.24% savings in switching energy and 92.1% reduction in total capacitance in comparison with the conventional switching method.
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