Cargando…

A Low-Power 12-Bit 20 MS/s Asynchronously Controlled SAR ADC for WAVE ITS Sensor Based Applications

A low power 12-bit, 20 MS/s asynchronously controlled successive approximation register (SAR) analog-to-digital converter (ADC) to be used in wireless access for vehicular environment (WAVE) intelligent transportation system (ITS) sensor based application is presented in this paper. To optimize the...

Descripción completa

Detalles Bibliográficos
Autores principales: Shehzad, Khuram, Verma, Deeksha, Khan, Danial, Ain, Qurat Ul, Basim, Muhammad, Kim, Sung Jin, Rikan, Behnam Samadpoor, Pu, Young Gun, Hwang, Keum Cheol, Yang, Youngoo, Lee, Kang-Yoon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8037875/
https://www.ncbi.nlm.nih.gov/pubmed/33804902
http://dx.doi.org/10.3390/s21072260
_version_ 1783677245673439232
author Shehzad, Khuram
Verma, Deeksha
Khan, Danial
Ain, Qurat Ul
Basim, Muhammad
Kim, Sung Jin
Rikan, Behnam Samadpoor
Pu, Young Gun
Hwang, Keum Cheol
Yang, Youngoo
Lee, Kang-Yoon
author_facet Shehzad, Khuram
Verma, Deeksha
Khan, Danial
Ain, Qurat Ul
Basim, Muhammad
Kim, Sung Jin
Rikan, Behnam Samadpoor
Pu, Young Gun
Hwang, Keum Cheol
Yang, Youngoo
Lee, Kang-Yoon
author_sort Shehzad, Khuram
collection PubMed
description A low power 12-bit, 20 MS/s asynchronously controlled successive approximation register (SAR) analog-to-digital converter (ADC) to be used in wireless access for vehicular environment (WAVE) intelligent transportation system (ITS) sensor based application is presented in this paper. To optimize the architecture with respect to power consumption and performance, several techniques are proposed. A switching method which employs the common mode charge recovery (CMCR) switching process is presented for capacitive digital-to-analog converter (CDAC) part to lower the switching energy. The switching technique proposed in our work consumes 56.3% less energy in comparison with conventional CMCR switching method. For high speed operation with low power consumption and to overcome the kick back issue in the comparator part, a mutated dynamic-latch comparator with cascode is implemented. In addition, to optimize the flexibility relating to the performance of logic part, an asynchronous topology is employed. The structure is fabricated in 65 nm CMOS process technology with an active area of 0.14 mm(2). With a sampling frequency of 20 MS/s, the proposed architecture attains signal-to-noise distortion ratio (SNDR) of 65.44 dB at Nyquist frequency while consuming only 472.2 µW with 1 V power supply.
format Online
Article
Text
id pubmed-8037875
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-80378752021-04-12 A Low-Power 12-Bit 20 MS/s Asynchronously Controlled SAR ADC for WAVE ITS Sensor Based Applications Shehzad, Khuram Verma, Deeksha Khan, Danial Ain, Qurat Ul Basim, Muhammad Kim, Sung Jin Rikan, Behnam Samadpoor Pu, Young Gun Hwang, Keum Cheol Yang, Youngoo Lee, Kang-Yoon Sensors (Basel) Communication A low power 12-bit, 20 MS/s asynchronously controlled successive approximation register (SAR) analog-to-digital converter (ADC) to be used in wireless access for vehicular environment (WAVE) intelligent transportation system (ITS) sensor based application is presented in this paper. To optimize the architecture with respect to power consumption and performance, several techniques are proposed. A switching method which employs the common mode charge recovery (CMCR) switching process is presented for capacitive digital-to-analog converter (CDAC) part to lower the switching energy. The switching technique proposed in our work consumes 56.3% less energy in comparison with conventional CMCR switching method. For high speed operation with low power consumption and to overcome the kick back issue in the comparator part, a mutated dynamic-latch comparator with cascode is implemented. In addition, to optimize the flexibility relating to the performance of logic part, an asynchronous topology is employed. The structure is fabricated in 65 nm CMOS process technology with an active area of 0.14 mm(2). With a sampling frequency of 20 MS/s, the proposed architecture attains signal-to-noise distortion ratio (SNDR) of 65.44 dB at Nyquist frequency while consuming only 472.2 µW with 1 V power supply. MDPI 2021-03-24 /pmc/articles/PMC8037875/ /pubmed/33804902 http://dx.doi.org/10.3390/s21072260 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ).
spellingShingle Communication
Shehzad, Khuram
Verma, Deeksha
Khan, Danial
Ain, Qurat Ul
Basim, Muhammad
Kim, Sung Jin
Rikan, Behnam Samadpoor
Pu, Young Gun
Hwang, Keum Cheol
Yang, Youngoo
Lee, Kang-Yoon
A Low-Power 12-Bit 20 MS/s Asynchronously Controlled SAR ADC for WAVE ITS Sensor Based Applications
title A Low-Power 12-Bit 20 MS/s Asynchronously Controlled SAR ADC for WAVE ITS Sensor Based Applications
title_full A Low-Power 12-Bit 20 MS/s Asynchronously Controlled SAR ADC for WAVE ITS Sensor Based Applications
title_fullStr A Low-Power 12-Bit 20 MS/s Asynchronously Controlled SAR ADC for WAVE ITS Sensor Based Applications
title_full_unstemmed A Low-Power 12-Bit 20 MS/s Asynchronously Controlled SAR ADC for WAVE ITS Sensor Based Applications
title_short A Low-Power 12-Bit 20 MS/s Asynchronously Controlled SAR ADC for WAVE ITS Sensor Based Applications
title_sort low-power 12-bit 20 ms/s asynchronously controlled sar adc for wave its sensor based applications
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8037875/
https://www.ncbi.nlm.nih.gov/pubmed/33804902
http://dx.doi.org/10.3390/s21072260
work_keys_str_mv AT shehzadkhuram alowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT vermadeeksha alowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT khandanial alowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT ainquratul alowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT basimmuhammad alowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT kimsungjin alowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT rikanbehnamsamadpoor alowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT puyounggun alowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT hwangkeumcheol alowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT yangyoungoo alowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT leekangyoon alowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT shehzadkhuram lowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT vermadeeksha lowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT khandanial lowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT ainquratul lowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT basimmuhammad lowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT kimsungjin lowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT rikanbehnamsamadpoor lowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT puyounggun lowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT hwangkeumcheol lowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT yangyoungoo lowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications
AT leekangyoon lowpower12bit20mssasynchronouslycontrolledsaradcforwaveitssensorbasedapplications