A 0.1nW-1μW all-dynamic capacitance-to-digital converter with power/speed/capacitance scalability

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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Abstract

A versatile, low power and energy efficient Capacitance-to-Digital Converter (CDC) for Internet-of-Things (IoT) is presented, based on an all-dynamic architecture with adaptable speed, resolution and range. Sampling rates from 1S/s up to 100kS/s are supported and capacitances from 1.23 to 24.59pF can be digitized while the power scales inherently from 0.1nW to 1μW. This makes the design versatile to efficiently deal with a variety of sensors with different speed requirements and different capacitance values. The 0.1nW lowest absolute power is >20x smaller than prior-art, and the Figure-of-Merit (FoM) from 18 to 59fJ/conv-step is also the lowest among prior designs. As example, by connecting a MEMS pressure sensor, this chip can measure environmental pressure with only 0.8nW at a speed of 100S/s.

Original languageEnglish
Title of host publicationESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages118-121
Number of pages4
ISBN (Electronic)9781538654040
DOIs
Publication statusPublished - 16 Oct 2018
Event44th IEEE European Solid State Circuits Conference, ESSCIRC 2018 - Dresden, Germany
Duration: 3 Sep 20186 Sep 2018

Conference

Conference44th IEEE European Solid State Circuits Conference, ESSCIRC 2018
Abbreviated titleESSCIRC 2018
CountryGermany
CityDresden
Period3/09/186/09/18

Fingerprint

converters
Scalability
Capacitance
capacitance
arts
Pressure sensors
pressure sensors
figure of merit
microelectromechanical systems
MEMS
sampling
chips
Sampling
requirements
sensors
Sensors
energy
Internet of things

Keywords

  • CDC
  • dynamic
  • IoT
  • SAR ADC
  • versatile

Cite this

Xin, H., Andraud, M., Baltus, P., Cantatore, E., & Harpe, P. (2018). A 0.1nW-1μW all-dynamic capacitance-to-digital converter with power/speed/capacitance scalability. In ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (pp. 118-121). [8494321] Piscataway: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ESSCIRC.2018.8494321
Xin, Haoming ; Andraud, Martin ; Baltus, Peter ; Cantatore, Eugenio ; Harpe, Pieter. / A 0.1nW-1μW all-dynamic capacitance-to-digital converter with power/speed/capacitance scalability. ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference. Piscataway : Institute of Electrical and Electronics Engineers, 2018. pp. 118-121
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Xin, H, Andraud, M, Baltus, P, Cantatore, E & Harpe, P 2018, A 0.1nW-1μW all-dynamic capacitance-to-digital converter with power/speed/capacitance scalability. in ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference., 8494321, Institute of Electrical and Electronics Engineers, Piscataway, pp. 118-121, 44th IEEE European Solid State Circuits Conference, ESSCIRC 2018, Dresden, Germany, 3/09/18. https://doi.org/10.1109/ESSCIRC.2018.8494321

A 0.1nW-1μW all-dynamic capacitance-to-digital converter with power/speed/capacitance scalability. / Xin, Haoming; Andraud, Martin; Baltus, Peter; Cantatore, Eugenio; Harpe, Pieter.

ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference. Piscataway : Institute of Electrical and Electronics Engineers, 2018. p. 118-121 8494321.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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AB - A versatile, low power and energy efficient Capacitance-to-Digital Converter (CDC) for Internet-of-Things (IoT) is presented, based on an all-dynamic architecture with adaptable speed, resolution and range. Sampling rates from 1S/s up to 100kS/s are supported and capacitances from 1.23 to 24.59pF can be digitized while the power scales inherently from 0.1nW to 1μW. This makes the design versatile to efficiently deal with a variety of sensors with different speed requirements and different capacitance values. The 0.1nW lowest absolute power is >20x smaller than prior-art, and the Figure-of-Merit (FoM) from 18 to 59fJ/conv-step is also the lowest among prior designs. As example, by connecting a MEMS pressure sensor, this chip can measure environmental pressure with only 0.8nW at a speed of 100S/s.

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Xin H, Andraud M, Baltus P, Cantatore E, Harpe P. A 0.1nW-1μW all-dynamic capacitance-to-digital converter with power/speed/capacitance scalability. In ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference. Piscataway: Institute of Electrical and Electronics Engineers. 2018. p. 118-121. 8494321 https://doi.org/10.1109/ESSCIRC.2018.8494321