A 52 µW heart-rate measurement interface fabricated on a flexible foil with A-IGZO TFTs

Mohammad Zulqarnain, Stefano Stanzione, Jan Laurens P.J. van der Steen, Gerwin H. Gelinck, Kris Myny, S. Abdinia, E. Cantatore

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

3 Citations (Scopus)

Abstract

This paper presents a 52 μW heart-rate measurement interface for wearable applications, fabricated on a flexible foil with a-IGZO TFTs. The interface consists of a cascaded diode-connected load preamplifier with a gain of 22 dB in 3 kHz bandwidth. The output is provided as a binary PWM waveform, which can be sent to a reader device using wireless communication. Voltage to pulse-width conversion is achieved with a simple and power minimalistic approach, which exploits a reset integrator. Experimental characterization demonstrates an overall low-frequency gain of the system equal to 25 msec/V and an input referred noise of 186.3 μV rms. In-vivo measurements have been performed, resulting in a 60 bpm heart-rate for a person at rest.
Original languageEnglish
Title of host publicationESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages222-225
Number of pages4
ISBN (Electronic)978-1-5386-5404-0
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

Keywords

  • 1/f noise
  • IGZO
  • PWM
  • bio-signal read out
  • voltage to pulse width conversion

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  • Cite this

    Zulqarnain, M., Stanzione, S., van der Steen, J. L. P. J., Gelinck, G. H., Myny, K., Abdinia, S., & Cantatore, E. (2018). A 52 µW heart-rate measurement interface fabricated on a flexible foil with A-IGZO TFTs. In ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (pp. 222-225). [8494298] Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ESSCIRC.2018.8494298