Low-power and accurate operation of a CMOS smart temperature sensor based on bipolar devices and Delta-Sigma A/D converter

AL Aita; KAA Makinwa

doi:doi:10.1109/RME.2007.4401829

Low-power and accurate operation of a CMOS smart temperature sensor based on bipolar devices and Delta-Sigma A/D converter

AL Aita, KAA Makinwa

Electronic Instrumentation

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

Abstract

Due to the trend towards low power operation, as in autonomous systems where power constraints are very high, sensors are increasingly being required to dissipate very low power (few microwatts). In this paper, a low-power version of a smart temperature sensor in 0.7 {it¿m} CMOS technology is presented. Based on accuracy requirements, a minimum biasing current {itIbias} for the sensor¿s bipolar core is determined. Measurement results for {itI{bias}} = 250{itnA} and CS = 1.25{itpF} (ADC sampling capacitor) are shown. An inaccuracy below ±0.15°C from ¿55°C to 125°C is achievable with a two-point calibration.

Original language	Undefined/Unknown
Title of host publication	Proceedings Microelectronics and Electronics Conference, 2007
Editors	s.n.
Place of Publication	Bordeaux, France.
Publisher	IEEE Society
Pages	133-136
Number of pages	4
ISBN (Print)	1-4244-1000-2
DOIs	https://doi.org/doi:10.1109/RME.2007.4401829
Publication status	Published - 2007
Event	Microelectronics and Electronics Conference, 2007, Santa Maria, Brazil - Bordeaux, France. Duration: 2 Jul 2007 → 5 Jul 2007

Publication series

Name
Publisher	IEEE

Conference

Conference	Microelectronics and Electronics Conference, 2007, Santa Maria, Brazil
Period	2/07/07 → 5/07/07

Keywords

Elektrotechniek
Techniek
conference contrib. refereed
Conf.proc. > 3 pag

Access to Document

doi:10.1109/RME.2007.4401829

Cite this

@inproceedings{1c0f41b0ab82492a8b72c2b1e798a8a3,

title = "Low-power and accurate operation of a CMOS smart temperature sensor based on bipolar devices and Delta-Sigma A/D converter",

abstract = "Due to the trend towards low power operation, as in autonomous systems where power constraints are very high, sensors are increasingly being required to dissipate very low power (few microwatts). In this paper, a low-power version of a smart temperature sensor in 0.7 {it¿m} CMOS technology is presented. Based on accuracy requirements, a minimum biasing current {itIbias} for the sensor¿s bipolar core is determined. Measurement results for {itI{bias}} = 250{itnA} and CS = 1.25{itpF} (ADC sampling capacitor) are shown. An inaccuracy below ±0.15°C from ¿55°C to 125°C is achievable with a two-point calibration.",

keywords = "Elektrotechniek, Techniek, conference contrib. refereed, Conf.proc. > 3 pag",

author = "AL Aita and KAA Makinwa",

year = "2007",

doi = "doi:10.1109/RME.2007.4401829",

language = "Undefined/Unknown",

isbn = "1-4244-1000-2",

publisher = "IEEE Society",

pages = "133--136",

editor = "s.n.",

booktitle = "Proceedings Microelectronics and Electronics Conference, 2007",

note = "Microelectronics and Electronics Conference, 2007, Santa Maria, Brazil ; Conference date: 02-07-2007 Through 05-07-2007",

}

Aita, AL & Makinwa, KAA 2007, Low-power and accurate operation of a CMOS smart temperature sensor based on bipolar devices and Delta-Sigma A/D converter. in s.n. (ed.), Proceedings Microelectronics and Electronics Conference, 2007. IEEE Society, Bordeaux, France., pp. 133-136, Microelectronics and Electronics Conference, 2007, Santa Maria, Brazil, 2/07/07. https://doi.org/doi:10.1109/RME.2007.4401829

Low-power and accurate operation of a CMOS smart temperature sensor based on bipolar devices and Delta-Sigma A/D converter. / Aita, AL; Makinwa, KAA.
Proceedings Microelectronics and Electronics Conference, 2007. ed. / s.n. Bordeaux, France.: IEEE Society, 2007. p. 133-136.

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

TY - GEN

T1 - Low-power and accurate operation of a CMOS smart temperature sensor based on bipolar devices and Delta-Sigma A/D converter

AU - Aita, AL

AU - Makinwa, KAA

PY - 2007

Y1 - 2007

N2 - Due to the trend towards low power operation, as in autonomous systems where power constraints are very high, sensors are increasingly being required to dissipate very low power (few microwatts). In this paper, a low-power version of a smart temperature sensor in 0.7 {it¿m} CMOS technology is presented. Based on accuracy requirements, a minimum biasing current {itIbias} for the sensor¿s bipolar core is determined. Measurement results for {itI{bias}} = 250{itnA} and CS = 1.25{itpF} (ADC sampling capacitor) are shown. An inaccuracy below ±0.15°C from ¿55°C to 125°C is achievable with a two-point calibration.

AB - Due to the trend towards low power operation, as in autonomous systems where power constraints are very high, sensors are increasingly being required to dissipate very low power (few microwatts). In this paper, a low-power version of a smart temperature sensor in 0.7 {it¿m} CMOS technology is presented. Based on accuracy requirements, a minimum biasing current {itIbias} for the sensor¿s bipolar core is determined. Measurement results for {itI{bias}} = 250{itnA} and CS = 1.25{itpF} (ADC sampling capacitor) are shown. An inaccuracy below ±0.15°C from ¿55°C to 125°C is achievable with a two-point calibration.

KW - Elektrotechniek

KW - Techniek

KW - conference contrib. refereed

KW - Conf.proc. > 3 pag

U2 - doi:10.1109/RME.2007.4401829

DO - doi:10.1109/RME.2007.4401829

M3 - Conference contribution

SN - 1-4244-1000-2

SP - 133

EP - 136

BT - Proceedings Microelectronics and Electronics Conference, 2007

A2 - s.n., null

PB - IEEE Society

CY - Bordeaux, France.

T2 - Microelectronics and Electronics Conference, 2007, Santa Maria, Brazil

Y2 - 2 July 2007 through 5 July 2007

ER -