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Paper Abstract and Keywords
Presentation 2024-11-12 14:30
Low Power ΔΣ Modulator With Low Voltage OTA for Wearable Application
Naoya Maruyama, Satoshi Komatsu (Tokyo Denki Univ.) VLD2024-32 ICD2024-50 DC2024-54 RECONF2024-62
Abstract (in Japanese) (See Japanese page) 
(in English) Wearable devices that monitor biological signals are powered by batteries. Therefore, the ΔΣ modulator (DSM) in these devices must have low power consumption. Since biological signals are low-frequency signals, an OTA with a low transconductance Gm is necessary for the Gm-C integrator in the modulator. Therefore, an OTA with a low Gm was proposed, but it consumes a lot of power because it uses two amplifiers. One of the ways to reduce the power consumption of the OTA is to drive it with a low supply voltage. However, the operation of the proposed OTA at low supply voltages leads to a decrease in the input voltage range. In order to solve this problem, we propose a OTA with improved voltage range even under low supply voltage by bulk input. We also propose a low-power consumption DSM that can be operated under low voltage power supplies by using the proposed OTA.
Keyword (in Japanese) (See Japanese page) 
(in English) Analog to Digital Converter / ΔΣ modulator / Low Power / / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 248, ICD2024-50, pp. 32-36, Nov. 2024.
Paper # ICD2024-50 
Date of Issue 2024-11-05 (VLD, ICD, DC, RECONF) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF VLD2024-32 ICD2024-50 DC2024-54 RECONF2024-62

Conference Information
Committee VLD DC RECONF ICD IPSJ-SLDM  
Conference Date 2024-11-12 - 2024-11-14 
Place (in Japanese) (See Japanese page) 
Place (in English) COMPAL HALL 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Design Gaia 2024 -New Field of VLSI Design- 
Paper Information
Registration To ICD 
Conference Code 2024-11-VLD-DC-RECONF-ICD-SLDM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Low Power ΔΣ Modulator With Low Voltage OTA for Wearable Application 
Sub Title (in English)  
Keyword(1) Analog to Digital Converter  
Keyword(2) ΔΣ modulator  
Keyword(3) Low Power  
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1st Author's Name Naoya Maruyama  
1st Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
2nd Author's Name Satoshi Komatsu  
2nd Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
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Speaker Author-1 
Date Time 2024-11-12 14:30:00 
Presentation Time 25 minutes 
Registration for ICD 
Paper # VLD2024-32, ICD2024-50, DC2024-54, RECONF2024-62 
Volume (vol) vol.124 
Number (no) no.247(VLD), no.248(ICD), no.249(DC), no.250(RECONF) 
Page pp.32-36 
#Pages 5 
Date of Issue 2024-11-05 (VLD, ICD, DC, RECONF) 

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