A 114-AF RMS- Resolution 46-NF/10-MΩ -Range Digital-Intensive Reconfigurable RC-to-Digital Converter with Parasitic-Insensitive Femto-Farad Baseline Sensing
A 114-AF RMS- Resolution 46-NF/10-MΩ -Range Digital-Intensive Reconfigurable RC-to-Digital Converter with Parasitic-Insensitive Femto-Farad Baseline Sensing
复制标题
具有寄生不敏感毫微微法基线传感功能的 114AF RMS 分辨率 46NF/10MΩ 范围数字密集型可重配置 RC 数字转换器
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Junghyup Lee
中科院分区：
文献类型：
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作者：
Arup K. George;Wooyoon Shim;M. Je;Junghyup Lee
本文提出了一种数字密集型动态可重构RC-数字转换器，其输入范围为46 nF/10 MΩ，适用于以时间交错方式阅读R或C传感器。其可重构性还允许毫微微法拉基线电容的寄生不敏感感测。该器件采用0.18 µm CMOS工艺实现，采用摆动升压周期调制（SB-PM）前端，实现114 aFrms的电容分辨率，对应于1 V电源下4.04 pJ/转换步长的FOM。
This paper presents a digital-intensive dynamically reconfigurable RC-to-digital converter with an input range of 46 nF/10 MΩ, suitable for reading out R or C sensors in a time-interleaved way. Its reconfigurability also allows parasitic-insensitive sensing of femto-farad baseline capacitances. Implemented in a 0.18-µm CMOS process, it uses a swing-boosted period-modulation (SB-PM) frontend, achieving a capacitance resolution of 114 aFrms corresponding to an FOM of 4.04 pJ/conversion-step from a 1-V supply.