High accuracy time-mode duty-cycle-modulation-based temperature sensor for energy efficient system applications

This paper presents a new time-mode duty-cycle-modulation-based high accuracy temperature sensor. Different from the well-known ΣΔADC based read-out structure, this temperature sensor's architecture utilizes a temperature-dependent oscillator to convert the temperature information into temperat...

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Main Authors: Zhu, Di, Wang, Jiacheng, Siek, Liter, Kok, Chiang Liang, Qiu, Lei, Zheng, Yuanjin
Other Authors: School of Electrical and Electronic Engineering
Format: Conference or Workshop Item
Language:English
Published: 2015
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Online Access:https://hdl.handle.net/10356/98416
http://hdl.handle.net/10220/38536
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-984162021-01-10T10:42:15Z High accuracy time-mode duty-cycle-modulation-based temperature sensor for energy efficient system applications Zhu, Di Wang, Jiacheng Siek, Liter Kok, Chiang Liang Qiu, Lei Zheng, Yuanjin School of Electrical and Electronic Engineering 2014 14th International Symposium on Integrated Circuits (ISIC 2014) Energy Research Institute @ NTU (ERI@N) DRNTU::Engineering::Electrical and electronic engineering::Integrated circuits This paper presents a new time-mode duty-cycle-modulation-based high accuracy temperature sensor. Different from the well-known ΣΔADC based read-out structure, this temperature sensor's architecture utilizes a temperature-dependent oscillator to convert the temperature information into temperature related time-mode parameter, which means that the large power consumption of ΣΔADCs can be mitigated. The useful information of the oscillator's output is the duty-cycle, not the absolute frequency. In this way, a proportional to absolute temperature (PTAT) data stream is generated by the special oscillator. With a linear formula, this duty cycle stream can be converted into temperature value. The design is simulated in 0.18μm standard digital CMOS process. The simulation result shows that the worst temperature inaccuracy is kept within 0.5°C with a one-point calibration from -55°C to 125°C. The accuracy FOM is 0.185nJ%2. Accepted version 2015-08-27T08:50:28Z 2019-12-06T19:55:02Z 2015-08-27T08:50:28Z 2019-12-06T19:55:02Z 2014 2014 Conference Paper Zhu, D., Wang, J., Siek, L., Kok, C. L., Qiu, L., & Zheng, Y. (2014). High accuracy time-mode duty-cycle-modulation-based temperature sensor for energy efficient system applications. 2014 International Symposium on Integrated Circuits (ISIC 2014). https://hdl.handle.net/10356/98416 http://hdl.handle.net/10220/38536 10.1109/ISICIR.2014.7029502 en © 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: [http://dx.doi.org/10.1109/ISICIR.2014.7029502]. 14 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Electrical and electronic engineering::Integrated circuits
spellingShingle DRNTU::Engineering::Electrical and electronic engineering::Integrated circuits
Zhu, Di
Wang, Jiacheng
Siek, Liter
Kok, Chiang Liang
Qiu, Lei
Zheng, Yuanjin
High accuracy time-mode duty-cycle-modulation-based temperature sensor for energy efficient system applications
description This paper presents a new time-mode duty-cycle-modulation-based high accuracy temperature sensor. Different from the well-known ΣΔADC based read-out structure, this temperature sensor's architecture utilizes a temperature-dependent oscillator to convert the temperature information into temperature related time-mode parameter, which means that the large power consumption of ΣΔADCs can be mitigated. The useful information of the oscillator's output is the duty-cycle, not the absolute frequency. In this way, a proportional to absolute temperature (PTAT) data stream is generated by the special oscillator. With a linear formula, this duty cycle stream can be converted into temperature value. The design is simulated in 0.18μm standard digital CMOS process. The simulation result shows that the worst temperature inaccuracy is kept within 0.5°C with a one-point calibration from -55°C to 125°C. The accuracy FOM is 0.185nJ%2.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Zhu, Di
Wang, Jiacheng
Siek, Liter
Kok, Chiang Liang
Qiu, Lei
Zheng, Yuanjin
format Conference or Workshop Item
author Zhu, Di
Wang, Jiacheng
Siek, Liter
Kok, Chiang Liang
Qiu, Lei
Zheng, Yuanjin
author_sort Zhu, Di
title High accuracy time-mode duty-cycle-modulation-based temperature sensor for energy efficient system applications
title_short High accuracy time-mode duty-cycle-modulation-based temperature sensor for energy efficient system applications
title_full High accuracy time-mode duty-cycle-modulation-based temperature sensor for energy efficient system applications
title_fullStr High accuracy time-mode duty-cycle-modulation-based temperature sensor for energy efficient system applications
title_full_unstemmed High accuracy time-mode duty-cycle-modulation-based temperature sensor for energy efficient system applications
title_sort high accuracy time-mode duty-cycle-modulation-based temperature sensor for energy efficient system applications
publishDate 2015
url https://hdl.handle.net/10356/98416
http://hdl.handle.net/10220/38536
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