基于cco的高数字异步模拟-时间转换器

2019 IEEE 62nd International Midwest Symposium on Circuits and Systems (MWSCAS) Pub Date : 2019-08-01 DOI:10.1109/MWSCAS.2019.8885366

S. T. Chandrasekaran, A. Sanyal

{"title":"基于cco的高数字异步模拟-时间转换器","authors":"S. T. Chandrasekaran, A. Sanyal","doi":"10.1109/MWSCAS.2019.8885366","DOIUrl":null,"url":null,"abstract":"This paper presents an asynchronous current controlled oscillator (CCO) based analog-to-time converter (ATC). The proposed ATC uses a ring oscillator as phase-domain integrator and quantizer. A negative feedback loop using current steering digital-to-analog converter (DAC) relaxes linearity requirement of the CCO. The ATC output is a multi-phase pulse-width modulated (PWM) signal which can be used with continuous-time digital signal processing systems. The proposed ATC is simulated in 65nm CMOS process an√d has a 59.2dB SNDR with an input-referred noise of 42.6nV/$\\sqrt {{\\text{Hz}}} $ over 500kHz bandwidth while consuming 11µW from 0.5V power supply.","PeriodicalId":287815,"journal":{"name":"2019 IEEE 62nd International Midwest Symposium on Circuits and Systems (MWSCAS)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Highly Digital CCO-Based Asynchronous Analog-to-Time Converter\",\"authors\":\"S. T. Chandrasekaran, A. Sanyal\",\"doi\":\"10.1109/MWSCAS.2019.8885366\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents an asynchronous current controlled oscillator (CCO) based analog-to-time converter (ATC). The proposed ATC uses a ring oscillator as phase-domain integrator and quantizer. A negative feedback loop using current steering digital-to-analog converter (DAC) relaxes linearity requirement of the CCO. The ATC output is a multi-phase pulse-width modulated (PWM) signal which can be used with continuous-time digital signal processing systems. The proposed ATC is simulated in 65nm CMOS process an√d has a 59.2dB SNDR with an input-referred noise of 42.6nV/$\\\\sqrt {{\\\\text{Hz}}} $ over 500kHz bandwidth while consuming 11µW from 0.5V power supply.\",\"PeriodicalId\":287815,\"journal\":{\"name\":\"2019 IEEE 62nd International Midwest Symposium on Circuits and Systems (MWSCAS)\",\"volume\":\"71 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2019 IEEE 62nd International Midwest Symposium on Circuits and Systems (MWSCAS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MWSCAS.2019.8885366\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 IEEE 62nd International Midwest Symposium on Circuits and Systems (MWSCAS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSCAS.2019.8885366","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

摘要

提出了一种基于异步电流控制振荡器(CCO)的模拟-时间转换器(ATC)。提出的ATC采用环形振荡器作为相域积分器和量化器。采用电流转向数模转换器(DAC)的负反馈回路放宽了CCO的线性度要求。ATC输出为多相脉宽调制(PWM)信号，可用于连续时间数字信号处理系统。所提出的ATC在65nm CMOS工艺中进行了仿真，其SNDR为59.2dB，输入参考噪声为42.6nV/$\sqrt {{\text{Hz}} $，带宽超过500kHz，功耗为11µW，电源功耗为0.5V。

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

A Highly Digital CCO-Based Asynchronous Analog-to-Time Converter

This paper presents an asynchronous current controlled oscillator (CCO) based analog-to-time converter (ATC). The proposed ATC uses a ring oscillator as phase-domain integrator and quantizer. A negative feedback loop using current steering digital-to-analog converter (DAC) relaxes linearity requirement of the CCO. The ATC output is a multi-phase pulse-width modulated (PWM) signal which can be used with continuous-time digital signal processing systems. The proposed ATC is simulated in 65nm CMOS process an√d has a 59.2dB SNDR with an input-referred noise of 42.6nV/$\sqrt {{\text{Hz}}} $ over 500kHz bandwidth while consuming 11µW from 0.5V power supply.

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

2019 IEEE 62nd International Midwest Symposium on Circuits and Systems (MWSCAS)

自引率

0.00%

发文量