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...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2015
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/98416 http://hdl.handle.net/10220/38536 |
| _version_ | 1826111549538828288 |
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| author | Zhu, Di Wang, Jiacheng Siek, Liter Kok, Chiang Liang Qiu, Lei Zheng, Yuanjin |
| 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 |
| author_sort | Zhu, Di |
| collection | NTU |
| 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. |
| first_indexed | 2024-10-01T02:52:34Z |
| format | Conference Paper |
| id | ntu-10356/98416 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:52:34Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-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 |
| 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 |
| title | 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_short | 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 |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Integrated circuits |
| url | https://hdl.handle.net/10356/98416 http://hdl.handle.net/10220/38536 |
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