A Wide Dynamic Range Sigma-Delta Modulator for EEG Acquisition Using Randomized DWA and Dynamic-Modulated Scaling-Down Techniques

This paper proposes a wide dynamic range (DR) and high-resolution discrete-time (DT) 2-order 4-bit sigma-delta modulator with a novel dynamic-modulated scaling-down (DM-SD) technology for non-invasive electroencephalogram (EEG) acquisition. The DM-SD technology can expand the input dynamic range and...

Descripción completa

Detalles Bibliográficos
Autores principales: Han, Yongchun, Liu, Wenhao, Zhang, Xiangwei, Wang, Xiaosong, Liu, Xin, Liu, Yu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9824506/
https://www.ncbi.nlm.nih.gov/pubmed/36616799
http://dx.doi.org/10.3390/s23010201
_version_ 1784866426992984064
author Han, Yongchun
Liu, Wenhao
Zhang, Xiangwei
Wang, Xiaosong
Liu, Xin
Liu, Yu
author_facet Han, Yongchun
Liu, Wenhao
Zhang, Xiangwei
Wang, Xiaosong
Liu, Xin
Liu, Yu
author_sort Han, Yongchun
collection PubMed
description This paper proposes a wide dynamic range (DR) and high-resolution discrete-time (DT) 2-order 4-bit sigma-delta modulator with a novel dynamic-modulated scaling-down (DM-SD) technology for non-invasive electroencephalogram (EEG) acquisition. The DM-SD technology can expand the input dynamic range and suppress large input offsets at the same time. The modulator was designed with 180nm CMOS technology with an area of 0.49 mm [Formula: see text]. We achieve a 118.1 dB SNDR when the input signal is 437.5 Hz and the signal bandwidth is 1500 Hz. Due to the proposed DM-SD technology, the DR is expanded to 126 dB. The power consumption of the whole modulator is 1.6 mW and a 177.8 dB Schreier figure-of-merit (FoMs) is realized.
format Online
Article
Text
id pubmed-9824506
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-98245062023-01-08 A Wide Dynamic Range Sigma-Delta Modulator for EEG Acquisition Using Randomized DWA and Dynamic-Modulated Scaling-Down Techniques Han, Yongchun Liu, Wenhao Zhang, Xiangwei Wang, Xiaosong Liu, Xin Liu, Yu Sensors (Basel) Article This paper proposes a wide dynamic range (DR) and high-resolution discrete-time (DT) 2-order 4-bit sigma-delta modulator with a novel dynamic-modulated scaling-down (DM-SD) technology for non-invasive electroencephalogram (EEG) acquisition. The DM-SD technology can expand the input dynamic range and suppress large input offsets at the same time. The modulator was designed with 180nm CMOS technology with an area of 0.49 mm [Formula: see text]. We achieve a 118.1 dB SNDR when the input signal is 437.5 Hz and the signal bandwidth is 1500 Hz. Due to the proposed DM-SD technology, the DR is expanded to 126 dB. The power consumption of the whole modulator is 1.6 mW and a 177.8 dB Schreier figure-of-merit (FoMs) is realized. MDPI 2022-12-24 /pmc/articles/PMC9824506/ /pubmed/36616799 http://dx.doi.org/10.3390/s23010201 Text en © 2022 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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Han, Yongchun
Liu, Wenhao
Zhang, Xiangwei
Wang, Xiaosong
Liu, Xin
Liu, Yu
A Wide Dynamic Range Sigma-Delta Modulator for EEG Acquisition Using Randomized DWA and Dynamic-Modulated Scaling-Down Techniques
title A Wide Dynamic Range Sigma-Delta Modulator for EEG Acquisition Using Randomized DWA and Dynamic-Modulated Scaling-Down Techniques
title_full A Wide Dynamic Range Sigma-Delta Modulator for EEG Acquisition Using Randomized DWA and Dynamic-Modulated Scaling-Down Techniques
title_fullStr A Wide Dynamic Range Sigma-Delta Modulator for EEG Acquisition Using Randomized DWA and Dynamic-Modulated Scaling-Down Techniques
title_full_unstemmed A Wide Dynamic Range Sigma-Delta Modulator for EEG Acquisition Using Randomized DWA and Dynamic-Modulated Scaling-Down Techniques
title_short A Wide Dynamic Range Sigma-Delta Modulator for EEG Acquisition Using Randomized DWA and Dynamic-Modulated Scaling-Down Techniques
title_sort wide dynamic range sigma-delta modulator for eeg acquisition using randomized dwa and dynamic-modulated scaling-down techniques
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9824506/
https://www.ncbi.nlm.nih.gov/pubmed/36616799
http://dx.doi.org/10.3390/s23010201
work_keys_str_mv AT hanyongchun awidedynamicrangesigmadeltamodulatorforeegacquisitionusingrandomizeddwaanddynamicmodulatedscalingdowntechniques
AT liuwenhao awidedynamicrangesigmadeltamodulatorforeegacquisitionusingrandomizeddwaanddynamicmodulatedscalingdowntechniques
AT zhangxiangwei awidedynamicrangesigmadeltamodulatorforeegacquisitionusingrandomizeddwaanddynamicmodulatedscalingdowntechniques
AT wangxiaosong awidedynamicrangesigmadeltamodulatorforeegacquisitionusingrandomizeddwaanddynamicmodulatedscalingdowntechniques
AT liuxin awidedynamicrangesigmadeltamodulatorforeegacquisitionusingrandomizeddwaanddynamicmodulatedscalingdowntechniques
AT liuyu awidedynamicrangesigmadeltamodulatorforeegacquisitionusingrandomizeddwaanddynamicmodulatedscalingdowntechniques
AT hanyongchun widedynamicrangesigmadeltamodulatorforeegacquisitionusingrandomizeddwaanddynamicmodulatedscalingdowntechniques
AT liuwenhao widedynamicrangesigmadeltamodulatorforeegacquisitionusingrandomizeddwaanddynamicmodulatedscalingdowntechniques
AT zhangxiangwei widedynamicrangesigmadeltamodulatorforeegacquisitionusingrandomizeddwaanddynamicmodulatedscalingdowntechniques
AT wangxiaosong widedynamicrangesigmadeltamodulatorforeegacquisitionusingrandomizeddwaanddynamicmodulatedscalingdowntechniques
AT liuxin widedynamicrangesigmadeltamodulatorforeegacquisitionusingrandomizeddwaanddynamicmodulatedscalingdowntechniques
AT liuyu widedynamicrangesigmadeltamodulatorforeegacquisitionusingrandomizeddwaanddynamicmodulatedscalingdowntechniques

Ejemplares similares