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

Haoming Xin; Martin Andraud; Peter Baltus; Eugenio Cantatore; Pieter Harpe

doi:10.1109/ESSCIRC.2018.8494321

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

Haoming Xin, Martin Andraud, Peter Baltus, Eugenio Cantatore, Pieter Harpe

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

3 Citations (Scopus)

2 Downloads (Pure)

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 language	English
Title of host publication	ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference
Place of Publication	Piscataway
Publisher	Institute of Electrical and Electronics Engineers
Pages	118-121
Number of pages	4
ISBN (Electronic)	9781538654040
DOIs	https://doi.org/10.1109/ESSCIRC.2018.8494321
Publication status	Published - 16 Oct 2018
Event	44th European Solid State Circuits Conference (ESSCIRC 2018) - Dresden, Germany Duration: 3 Sept 2018 → 6 Sept 2018 Conference number: 44

Conference

Conference	44th European Solid State Circuits Conference (ESSCIRC 2018)
Abbreviated title	ESSCIRC 2018
Country/Territory	Germany
City	Dresden
Period	3/09/18 → 6/09/18

Keywords

CDC
dynamic
IoT
SAR ADC
versatile

Access to Document

10.1109/ESSCIRC.2018.8494321

Cite this

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

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.",

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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 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 et al.

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 proceeding › Conference contribution › Academic › peer-review

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

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Keywords

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