5.4 A Hybrid Thermal-Diffusivity/Resistor-Based Temperature Sensor with a Self-Calibrated Inaccuracy of ±0.25° C(3 Σ) from -55°C to 125°C

Sining Pan; Jan A. Angevare; Kofi A.A. Makinwa

doi:10.1109/ISSCC42613.2021.9366032

5.4 A Hybrid Thermal-Diffusivity/Resistor-Based Temperature Sensor with a Self-Calibrated Inaccuracy of ±0.25° C(3 Σ) from -55°C to 125°C

Sining Pan, Jan A. Angevare, Kofi A.A. Makinwa

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

6 Citations (Scopus)

72 Downloads (Pure)

Abstract

Resistor-based temperature sensors can achieve higher resolution and energy-efficiency than traditional BJT-based sensors. To reach similar accuracy, however, they typically require 2-point (2-pt) calibration, compared to the low-cost 1-pt calibration required by BJT-based sensors. This paper presents a hybrid temperature sensor that uses an inherently accurate, but power-hungry, thermal-diffusivity (TD) sensor [1] to self-calibrate an inaccurate, but efficient, resistor-based sensor [2]. The use of an on-chip reference obviates the need for accurate temperature stabilized ovens or oil baths, drastically reducing calibration time and costs. Furthermore, by sharing most of the readout circuitry, the associated area overhead can be reduced. After self-calibration at room temperature (RT, \sim 25^{\circ}\mathrm{C}) and at an elevated temperature (\sim 85^{\circ}\mathrm{C}), the proposed hybrid temperature sensor achieves an inaccuracy of 0.25^{\circ}\mathrm{C} (3^{\sigma}) from -55^{\circ}\mathrm{C} to 125^{\circ}\mathrm{C}.

Original language	English
Title of host publication	2021 IEEE International Solid-State Circuits Conference, ISSCC 2021 - Digest of Technical Papers
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	78-80
Number of pages	3
ISBN (Electronic)	9781728195490
DOIs	https://doi.org/10.1109/ISSCC42613.2021.9366032
Publication status	Published - 2021
Event	2021 IEEE International Solid-State Circuits Conference, ISSCC 2021 - San Francisco, United States Duration: 13 Feb 2021 → 22 Feb 2021

Publication series

Name	Digest of Technical Papers - IEEE International Solid-State Circuits Conference
Volume	64
ISSN (Print)	0193-6530

Conference

Conference	2021 IEEE International Solid-State Circuits Conference, ISSCC 2021
Country/Territory	United States
City	San Francisco
Period	13/02/21 → 22/02/21

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/ISSCC42613.2021.9366032

5.4_A_Hybrid_Thermal-Diffusivity_Resistor-Based_Temperature_Sensor_with_a_Self-Calibrated_Inaccuracy_of_0.25_C3__from_-55C_to_125CFinal published version, 366 KB

Cite this

Pan, S., Angevare, J. A., & Makinwa, K. A. A. (2021). 5.4 A Hybrid Thermal-Diffusivity/Resistor-Based Temperature Sensor with a Self-Calibrated Inaccuracy of ±0.25° C(3 Σ) from -55°C to 125°C. In 2021 IEEE International Solid-State Circuits Conference, ISSCC 2021 - Digest of Technical Papers (pp. 78-80). Article 9366032 (Digest of Technical Papers - IEEE International Solid-State Circuits Conference; Vol. 64). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ISSCC42613.2021.9366032

Pan, Sining ; Angevare, Jan A. ; Makinwa, Kofi A.A. / 5.4 A Hybrid Thermal-Diffusivity/Resistor-Based Temperature Sensor with a Self-Calibrated Inaccuracy of ±0.25° C(3 Σ) from -55°C to 125°C. 2021 IEEE International Solid-State Circuits Conference, ISSCC 2021 - Digest of Technical Papers. Institute of Electrical and Electronics Engineers (IEEE), 2021. pp. 78-80 (Digest of Technical Papers - IEEE International Solid-State Circuits Conference).

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title = "5.4 A Hybrid Thermal-Diffusivity/Resistor-Based Temperature Sensor with a Self-Calibrated Inaccuracy of ±0.25° C(3 Σ) from -55°C to 125°C",

abstract = "Resistor-based temperature sensors can achieve higher resolution and energy-efficiency than traditional BJT-based sensors. To reach similar accuracy, however, they typically require 2-point (2-pt) calibration, compared to the low-cost 1-pt calibration required by BJT-based sensors. This paper presents a hybrid temperature sensor that uses an inherently accurate, but power-hungry, thermal-diffusivity (TD) sensor [1] to self-calibrate an inaccurate, but efficient, resistor-based sensor [2]. The use of an on-chip reference obviates the need for accurate temperature stabilized ovens or oil baths, drastically reducing calibration time and costs. Furthermore, by sharing most of the readout circuitry, the associated area overhead can be reduced. After self-calibration at room temperature (RT, \sim 25^{\circ}\mathrm{C}) and at an elevated temperature (\sim 85^{\circ}\mathrm{C}), the proposed hybrid temperature sensor achieves an inaccuracy of 0.25^{\circ}\mathrm{C} (3^{\sigma}) from -55^{\circ}\mathrm{C} to 125^{\circ}\mathrm{C}.",

author = "Sining Pan and Angevare, {Jan A.} and Makinwa, {Kofi A.A.}",

note = "Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. ; 2021 IEEE International Solid-State Circuits Conference, ISSCC 2021 ; Conference date: 13-02-2021 Through 22-02-2021",

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Pan, S, Angevare, JA & Makinwa, KAA 2021, 5.4 A Hybrid Thermal-Diffusivity/Resistor-Based Temperature Sensor with a Self-Calibrated Inaccuracy of ±0.25° C(3 Σ) from -55°C to 125°C. in 2021 IEEE International Solid-State Circuits Conference, ISSCC 2021 - Digest of Technical Papers., 9366032, Digest of Technical Papers - IEEE International Solid-State Circuits Conference, vol. 64, Institute of Electrical and Electronics Engineers (IEEE), pp. 78-80, 2021 IEEE International Solid-State Circuits Conference, ISSCC 2021, San Francisco, United States, 13/02/21. https://doi.org/10.1109/ISSCC42613.2021.9366032

5.4 A Hybrid Thermal-Diffusivity/Resistor-Based Temperature Sensor with a Self-Calibrated Inaccuracy of ±0.25° C(3 Σ) from -55°C to 125°C. / Pan, Sining; Angevare, Jan A.; Makinwa, Kofi A.A.
2021 IEEE International Solid-State Circuits Conference, ISSCC 2021 - Digest of Technical Papers. Institute of Electrical and Electronics Engineers (IEEE), 2021. p. 78-80 9366032 (Digest of Technical Papers - IEEE International Solid-State Circuits Conference; Vol. 64).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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N2 - Resistor-based temperature sensors can achieve higher resolution and energy-efficiency than traditional BJT-based sensors. To reach similar accuracy, however, they typically require 2-point (2-pt) calibration, compared to the low-cost 1-pt calibration required by BJT-based sensors. This paper presents a hybrid temperature sensor that uses an inherently accurate, but power-hungry, thermal-diffusivity (TD) sensor [1] to self-calibrate an inaccurate, but efficient, resistor-based sensor [2]. The use of an on-chip reference obviates the need for accurate temperature stabilized ovens or oil baths, drastically reducing calibration time and costs. Furthermore, by sharing most of the readout circuitry, the associated area overhead can be reduced. After self-calibration at room temperature (RT, \sim 25^{\circ}\mathrm{C}) and at an elevated temperature (\sim 85^{\circ}\mathrm{C}), the proposed hybrid temperature sensor achieves an inaccuracy of 0.25^{\circ}\mathrm{C} (3^{\sigma}) from -55^{\circ}\mathrm{C} to 125^{\circ}\mathrm{C}.

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Pan S, Angevare JA , Makinwa KAA. 5.4 A Hybrid Thermal-Diffusivity/Resistor-Based Temperature Sensor with a Self-Calibrated Inaccuracy of ±0.25° C(3 Σ) from -55°C to 125°C. In 2021 IEEE International Solid-State Circuits Conference, ISSCC 2021 - Digest of Technical Papers. Institute of Electrical and Electronics Engineers (IEEE). 2021. p. 78-80. 9366032. (Digest of Technical Papers - IEEE International Solid-State Circuits Conference). doi: 10.1109/ISSCC42613.2021.9366032

5.4 A Hybrid Thermal-Diffusivity/Resistor-Based Temperature Sensor with a Self-Calibrated Inaccuracy of ±0.25° C(3 Σ) from -55°C to 125°C

Abstract

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Bibliographical note

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