A 2.74pJ/conversion 0.0018mm2Temperature Sensor with On-chip Gain and Offset Correction

Yuting Shen; Mariska van der Struijk; Kevin Pelzers; Hanyue Li; Eugenio Cantatore; Pieter Harpe

doi:10.1109/ESSCIRC55480.2022.9911364

A 2.74pJ/conversion 0.0018mm²Temperature Sensor with On-chip Gain and Offset Correction

Yuting Shen, Mariska van der Struijk, Kevin Pelzers, Hanyue Li, Eugenio Cantatore, Pieter Harpe

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

7 Citations (Scopus)

144 Downloads (Pure)

Abstract

This paper presents a dynamic temperature sensor in 65nm CMOS with on-chip analog gain and offset correction for low power systems. By shifting the reset phase of the N-bit ADC, offset correction with a range of \pm 2^{(N-1)} LSB is realized. Fine tuning capacitors are introduced to improve the offset correction accuracy to 0.5LSB. By adding programmable parasitic capacitors, gain errors up to 6.3% can be compensated. Thanks to the proposed analog correction techniques, the gain errors are reduced to 0.73% and the offsets are reduced to 0.5LSB. This sensor consumes 2.74pJ per conversion and only occupies an area of 0.0018 mm2 including the extra correction techniques. It has an RMS resolution of 0.47K, leading to a FoM of 0.6 pJ.K2.

Original language	English
Title of host publication	ESSCIRC 2022 - IEEE 48th European Solid State Circuits Conference, Proceedings
Publisher	Institute of Electrical and Electronics Engineers
Pages	181-184
Number of pages	4
ISBN (Electronic)	9781665484947
DOIs	https://doi.org/10.1109/ESSCIRC55480.2022.9911364
Publication status	Published - 2022
Event	48th IEEE European Solid State Circuits Conference, ESSCIRC 2022 - Milan, Italy Duration: 19 Sept 2022 → 22 Sept 2022 Conference number: 44 https://www.esscirc-essderc2022.org/

Conference

Conference	48th IEEE European Solid State Circuits Conference, ESSCIRC 2022
Abbreviated title	ESSCIRC 2022
Country/Territory	Italy
City	Milan
Period	19/09/22 → 22/09/22
Internet address	https://www.esscirc-essderc2022.org/

Bibliographical note

Funding Information:
This work with project number 16594 is financed by the Dutch Research Council (NWO).

Funding

This work with project number 16594 is financed by the Dutch Research Council (NWO).

Keywords

analog correction
gain
offset
on-chip
temperature sensor

Access to Document

10.1109/ESSCIRC55480.2022.9911364

202209 ESSCIRC paperFinal author version , 1.35 MBLicence: Unspecified

Cite this

Shen, Y., van der Struijk, M., Pelzers, K., Li, H., Cantatore, E., & Harpe, P. (2022). A 2.74pJ/conversion 0.0018mm²Temperature Sensor with On-chip Gain and Offset Correction. In ESSCIRC 2022 - IEEE 48th European Solid State Circuits Conference, Proceedings (pp. 181-184). Article 9911364 Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ESSCIRC55480.2022.9911364

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title = "A 2.74pJ/conversion 0.0018mm2Temperature Sensor with On-chip Gain and Offset Correction",

abstract = "This paper presents a dynamic temperature sensor in 65nm CMOS with on-chip analog gain and offset correction for low power systems. By shifting the reset phase of the N-bit ADC, offset correction with a range of \textbackslash{}pm 2\textasciicircum{}\{(N-1)\} LSB is realized. Fine tuning capacitors are introduced to improve the offset correction accuracy to 0.5LSB. By adding programmable parasitic capacitors, gain errors up to 6.3\% can be compensated. Thanks to the proposed analog correction techniques, the gain errors are reduced to 0.73\% and the offsets are reduced to 0.5LSB. This sensor consumes 2.74pJ per conversion and only occupies an area of 0.0018 mm2 including the extra correction techniques. It has an RMS resolution of 0.47K, leading to a FoM of 0.6 pJ.K2.",

keywords = "analog correction, gain, offset, on-chip, temperature sensor",

author = "Yuting Shen and \{van der Struijk\}, Mariska and Kevin Pelzers and Hanyue Li and Eugenio Cantatore and Pieter Harpe",

note = "Funding Information: This work with project number 16594 is financed by the Dutch Research Council (NWO). ; 48th IEEE European Solid State Circuits Conference, ESSCIRC 2022, ESSCIRC 2022 ; Conference date: 19-09-2022 Through 22-09-2022",

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doi = "10.1109/ESSCIRC55480.2022.9911364",

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booktitle = "ESSCIRC 2022 - IEEE 48th European Solid State Circuits Conference, Proceedings",

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Shen, Y, van der Struijk, M, Pelzers, K, Li, H, Cantatore, E & Harpe, P 2022, A 2.74pJ/conversion 0.0018mm²Temperature Sensor with On-chip Gain and Offset Correction. in ESSCIRC 2022 - IEEE 48th European Solid State Circuits Conference, Proceedings., 9911364, Institute of Electrical and Electronics Engineers, pp. 181-184, 48th IEEE European Solid State Circuits Conference, ESSCIRC 2022, Milan, Italy, 19/09/22. https://doi.org/10.1109/ESSCIRC55480.2022.9911364

A 2.74pJ/conversion 0.0018mm²Temperature Sensor with On-chip Gain and Offset Correction. / Shen, Yuting; van der Struijk, Mariska; Pelzers, Kevin et al.
ESSCIRC 2022 - IEEE 48th European Solid State Circuits Conference, Proceedings. Institute of Electrical and Electronics Engineers, 2022. p. 181-184 9911364.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - Cantatore, Eugenio

AU - Harpe, Pieter

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AB - This paper presents a dynamic temperature sensor in 65nm CMOS with on-chip analog gain and offset correction for low power systems. By shifting the reset phase of the N-bit ADC, offset correction with a range of \pm 2^{(N-1)} LSB is realized. Fine tuning capacitors are introduced to improve the offset correction accuracy to 0.5LSB. By adding programmable parasitic capacitors, gain errors up to 6.3% can be compensated. Thanks to the proposed analog correction techniques, the gain errors are reduced to 0.73% and the offsets are reduced to 0.5LSB. This sensor consumes 2.74pJ per conversion and only occupies an area of 0.0018 mm2 including the extra correction techniques. It has an RMS resolution of 0.47K, leading to a FoM of 0.6 pJ.K2.

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