一个10b 100kS/s的SAR ADC，带电荷循环切换方法

2014 IEEE Asian Solid-State Circuits Conference (A-SSCC) Pub Date : 2014-11-01 DOI:10.1109/ASSCC.2014.7008927

Kai-Hsiang Chiang, Soon-Jyh Chang, Guan-Ying Huang, Ying-Zu Lin

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引用次数: 4

摘要

本文提出了一种低电压、高能效的10b SAR ADC，该ADC采用电荷循环开关方式，以节省开关能量。另外，采用基于窗口的可重构比较器实现快速比较和小功耗。所提出的10b SAR ADC在90nm CMOS中工作在0.4V电源电压下，工作速度为100kS/s。测量结果表明，在奈奎斯特速率下，原型ADC在107nW下的SNDR达到55.37dB。优点系数(FoM)为2.23fJ/con .-step。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A 10b 100kS/s SAR ADC with charge recycling switching method

This paper presents a low-voltage and energy-efficient 10b SAR ADC which manipulates charge recycling switching method for saving the switching energy. In additional, a window-based reconfigurable comparator is used to achieve fast comparison and small power dissipation. The proposed 10b SAR ADC operates at 100kS/s with 0.4V supply voltage in 90nm CMOS. The measurement results show that the prototype ADC achieve 55.37dB SNDR at Nyquist rate with only 107nW. The Figure-of-Merit (FoM) is 2.23fJ/conv.-step.

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2014 IEEE Asian Solid-State Circuits Conference (A-SSCC)

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