一种具有放大时域量化的高效电容式传感器读出电路

IF 2.2 Q3 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE

IEEE Solid-State Circuits Letters Pub Date : 2023-09-12 DOI:10.1109/LSSC.2023.3314457

Zilong Shen;Xiyuan Tang;Zhongyi Wu;Haoyang Luo;Zongnan Wang;Xiangxing Yang;Xing Zhang;Yuan Wang

{"title":"一种具有放大时域量化的高效电容式传感器读出电路","authors":"Zilong Shen;Xiyuan Tang;Zhongyi Wu;Haoyang Luo;Zongnan Wang;Xiangxing Yang;Xing Zhang;Yuan Wang","doi":"10.1109/LSSC.2023.3314457","DOIUrl":null,"url":null,"abstract":"This letter presents a capacitance-to-digital converter (CDC) with an incremental zoom current-controlled oscillator (CCO)-based time-domain \n<inline-formula> <tex-math>$\\Delta \\Sigma $ </tex-math></inline-formula>\n modulator (TD-\n<inline-formula> <tex-math>$\\Delta \\Sigma \\text{M}$ </tex-math></inline-formula>\n). It supports single-sensor and single-shot measurement, which provides significant power saving. A double-PFD (DPFD) quantizer achieves \n<inline-formula> <tex-math>$2\\times $ </tex-math></inline-formula>\n resolution enhancement compared to conventional PFD. A fast start-up scheme for CCO boosts conversion speed and ensures first conversion accuracy. The proposed design achieves 9.7 fJ/conv.-step with a short measurement time of \n<inline-formula> <tex-math>$4.1~\\mu \\text{s}$ </tex-math></inline-formula>\n. To the authors’ best knowledge, it realizes the best energy efficiency and shortest measurement time among all high-resolution CDCs achieving over 12 ENOB.","PeriodicalId":13032,"journal":{"name":"IEEE Solid-State Circuits Letters","volume":"6 ","pages":"257-260"},"PeriodicalIF":2.2000,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"An Energy-Efficient Capacitive Sensor Readout Circuit With Zoomed Time-Domain Quantization\",\"authors\":\"Zilong Shen;Xiyuan Tang;Zhongyi Wu;Haoyang Luo;Zongnan Wang;Xiangxing Yang;Xing Zhang;Yuan Wang\",\"doi\":\"10.1109/LSSC.2023.3314457\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This letter presents a capacitance-to-digital converter (CDC) with an incremental zoom current-controlled oscillator (CCO)-based time-domain \\n<inline-formula> <tex-math>$\\\\Delta \\\\Sigma $ </tex-math></inline-formula>\\n modulator (TD-\\n<inline-formula> <tex-math>$\\\\Delta \\\\Sigma \\\\text{M}$ </tex-math></inline-formula>\\n). It supports single-sensor and single-shot measurement, which provides significant power saving. A double-PFD (DPFD) quantizer achieves \\n<inline-formula> <tex-math>$2\\\\times $ </tex-math></inline-formula>\\n resolution enhancement compared to conventional PFD. A fast start-up scheme for CCO boosts conversion speed and ensures first conversion accuracy. The proposed design achieves 9.7 fJ/conv.-step with a short measurement time of \\n<inline-formula> <tex-math>$4.1~\\\\mu \\\\text{s}$ </tex-math></inline-formula>\\n. To the authors’ best knowledge, it realizes the best energy efficiency and shortest measurement time among all high-resolution CDCs achieving over 12 ENOB.\",\"PeriodicalId\":13032,\"journal\":{\"name\":\"IEEE Solid-State Circuits Letters\",\"volume\":\"6 \",\"pages\":\"257-260\"},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2023-09-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Solid-State Circuits Letters\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10247624/\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"COMPUTER SCIENCE, HARDWARE & ARCHITECTURE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Solid-State Circuits Letters","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10247624/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"COMPUTER SCIENCE, HARDWARE & ARCHITECTURE","Score":null,"Total":0}

引用次数: 0

摘要

这封信介绍了一种电容-数字转换器（CDC），该转换器具有基于增量缩放电流控制振荡器（CCO）的时域$\Delta\Sigma$调制器（TD-$\Delta \Sigma\text｛M｝$）。它支持单传感器和单次测量，可显著节省电源。与传统PFD相比，双PFD（DPFD）量化器的分辨率提高了2倍。CCO的快速启动方案提高了转换速度，并确保了首次转换的准确性。所提出的设计实现了9.7fJ/conv-步骤，测量时间短，为$4.1~\mu\text｛s｝$。据作者所知，在所有达到12 ENOB以上的高分辨率CDCs中，它实现了最佳的能效和最短的测量时间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

An Energy-Efficient Capacitive Sensor Readout Circuit With Zoomed Time-Domain Quantization

This letter presents a capacitance-to-digital converter (CDC) with an incremental zoom current-controlled oscillator (CCO)-based time-domain

$\Delta \Sigma $

modulator (TD-

$\Delta \Sigma \text{M}$

). It supports single-sensor and single-shot measurement, which provides significant power saving. A double-PFD (DPFD) quantizer achieves

$2\times $

resolution enhancement compared to conventional PFD. A fast start-up scheme for CCO boosts conversion speed and ensures first conversion accuracy. The proposed design achieves 9.7 fJ/conv.-step with a short measurement time of

$4.1~\mu \text{s}$

. To the authors’ best knowledge, it realizes the best energy efficiency and shortest measurement time among all high-resolution CDCs achieving over 12 ENOB.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

IEEE Solid-State Circuits Letters Engineering-Electrical and Electronic Engineering

CiteScore

4.30

自引率

3.70%

发文量