A 0.34-571nW all-dynamic versatile sensor interface for temperature, capacitance, and resistance sensing

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Abstract

A highly versatile all-dynamic sensor interface is proposed. It supports temperature/capacitance/resistance sensing with (a) adaptive power vs speed and resolution, (b) a configurable signal range, and (c) the ability for time-interleaved multimodal recording. State-of-the-art Figure-of-Merits (FoMs) are achieved of 0.82pJ•C^2 , 31fJ/c.-step, and 124fJ/c.-step, for temperature, capacitance and resistance sensing, respectively, with a minimum power consumption of 0.34nW and a chip area of 0.084mm^2 in 65nm CMOS. Multimodal sensing is demonstrated in real time, showing that this chip can measure temperature, acceleration (with a capacitive sensor) and pH (with a resistive sensor) together with only 1.4nW of power consumption.
Original languageEnglish
Title of host publicationESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages161-164
Number of pages4
ISBN (Electronic)978-1-7281-1550-4
DOIs
Publication statusPublished - Sep 2019
EventIEEE 45th European Solid State Circuits Conference (ESSCIRC2019) - Cracow, Poland
Duration: 23 Sep 201926 Sep 2019

Conference

ConferenceIEEE 45th European Solid State Circuits Conference (ESSCIRC2019)
CountryPoland
CityCracow
Period23/09/1926/09/19

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Keywords

  • All-Dynamic
  • Duty-Cycle
  • IoT
  • Multimodal Sensing
  • SAR ADC
  • Versatile Sensor Interface

Cite this

Xin, H., Andraud, M., Baltus, P. G. M., Cantatore, E., & Harpe, P. J. A. (2019). A 0.34-571nW all-dynamic versatile sensor interface for temperature, capacitance, and resistance sensing. In ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference (pp. 161-164). [8902918] Piscataway: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ESSCIRC.2019.8902918