A low power time domain ECG interface based on flexible a-IGZO TFTs

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

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Uittreksel

This work presents a low power ECG interface for wearable applications, based on unipolar a-IGZO TFTs manufactured on a flexible substrate. The interface consists of a cascaded diode-connected load preamplifier followed by a reset integrator, which is used to convert the voltage signal to a pulse-width modulated (PWM) representation. The output is thus provided as a binary PWM waveform, which can be conveniently sent to a reader device using wireless communication and can be further converted to a digital representation using a simple counter. The flicker noise and the offset are eliminated using an approach similar to correlated double sampling. An input chopper is exploited to alternate the connection between the inputs of the preamplifier for each sample. The output signal is then extracted by subtracting two consecutive samples after conversion to the digital domain. In this way offset and low-frequency noise, which are correlated between the two samples, are effectively cancelled.

TaalEngels
TitelProceedings - 2019 8th International Workshop on Advances in Sensors and Interfaces, IWASI 2019
Plaats van productiePiscataway
UitgeverijInstitute of Electrical and Electronics Engineers
Pagina's205-209
Aantal pagina's5
ISBN van elektronische versie9978-1-7281-0557-4
DOI's
StatusGepubliceerd - 1 jun 2019
Evenement8th International Workshop on Advances in Sensors and Interfaces, IWASI 2019 - Otranto, Italië
Duur: 13 jun 201914 jun 2019

Congres

Congres8th International Workshop on Advances in Sensors and Interfaces, IWASI 2019
LandItalië
StadOtranto
Periode13/06/1914/06/19

Vingerafdruk

Electrocardiography
Time Domain
preamplifiers
pulse duration
Low-frequency Noise
Flexible Substrate
Double Sampling
Diodes
flicker
electric choppers
output
Output
integrators
wireless communication
readers
Sampling
Wireless Communication
Diode
Alternate
Waveform

Trefwoorden

    Citeer dit

    Zulqarnain, M., Stanzione, S., van der Steen, J. L. P. J., Gelinck, G. H., Myny, K., & Cantatore, E. (2019). A low power time domain ECG interface based on flexible a-IGZO TFTs. In Proceedings - 2019 8th International Workshop on Advances in Sensors and Interfaces, IWASI 2019 (blz. 205-209). [8791321] Piscataway: Institute of Electrical and Electronics Engineers. DOI: 10.1109/IWASI.2019.8791321
    Zulqarnain, Mohammad ; Stanzione, Stefano ; van der Steen, Jan Laurens P.J. ; Gelinck, Gerwin H. ; Myny, Kris ; Cantatore, Eugenio. / A low power time domain ECG interface based on flexible a-IGZO TFTs. Proceedings - 2019 8th International Workshop on Advances in Sensors and Interfaces, IWASI 2019. Piscataway : Institute of Electrical and Electronics Engineers, 2019. blz. 205-209
    @inproceedings{6c73efd7428346bb8b3cf36352a0e421,
    title = "A low power time domain ECG interface based on flexible a-IGZO TFTs",
    abstract = "This work presents a low power ECG interface for wearable applications, based on unipolar a-IGZO TFTs manufactured on a flexible substrate. The interface consists of a cascaded diode-connected load preamplifier followed by a reset integrator, which is used to convert the voltage signal to a pulse-width modulated (PWM) representation. The output is thus provided as a binary PWM waveform, which can be conveniently sent to a reader device using wireless communication and can be further converted to a digital representation using a simple counter. The flicker noise and the offset are eliminated using an approach similar to correlated double sampling. An input chopper is exploited to alternate the connection between the inputs of the preamplifier for each sample. The output signal is then extracted by subtracting two consecutive samples after conversion to the digital domain. In this way offset and low-frequency noise, which are correlated between the two samples, are effectively cancelled.",
    keywords = "bio-signal read out, ECG, IGZO, voltage to pulse width conversion",
    author = "Mohammad Zulqarnain and Stefano Stanzione and {van der Steen}, {Jan Laurens P.J.} and Gelinck, {Gerwin H.} and Kris Myny and Eugenio Cantatore",
    year = "2019",
    month = "6",
    day = "1",
    doi = "10.1109/IWASI.2019.8791321",
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    Zulqarnain, M, Stanzione, S, van der Steen, JLPJ, Gelinck, GH, Myny, K & Cantatore, E 2019, A low power time domain ECG interface based on flexible a-IGZO TFTs. in Proceedings - 2019 8th International Workshop on Advances in Sensors and Interfaces, IWASI 2019., 8791321, Institute of Electrical and Electronics Engineers, Piscataway, blz. 205-209, Otranto, Italië, 13/06/19. DOI: 10.1109/IWASI.2019.8791321

    A low power time domain ECG interface based on flexible a-IGZO TFTs. / Zulqarnain, Mohammad; Stanzione, Stefano; van der Steen, Jan Laurens P.J.; Gelinck, Gerwin H.; Myny, Kris; Cantatore, Eugenio.

    Proceedings - 2019 8th International Workshop on Advances in Sensors and Interfaces, IWASI 2019. Piscataway : Institute of Electrical and Electronics Engineers, 2019. blz. 205-209 8791321.

    Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

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    AU - van der Steen,Jan Laurens P.J.

    AU - Gelinck,Gerwin H.

    AU - Myny,Kris

    AU - Cantatore,Eugenio

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    N2 - This work presents a low power ECG interface for wearable applications, based on unipolar a-IGZO TFTs manufactured on a flexible substrate. The interface consists of a cascaded diode-connected load preamplifier followed by a reset integrator, which is used to convert the voltage signal to a pulse-width modulated (PWM) representation. The output is thus provided as a binary PWM waveform, which can be conveniently sent to a reader device using wireless communication and can be further converted to a digital representation using a simple counter. The flicker noise and the offset are eliminated using an approach similar to correlated double sampling. An input chopper is exploited to alternate the connection between the inputs of the preamplifier for each sample. The output signal is then extracted by subtracting two consecutive samples after conversion to the digital domain. In this way offset and low-frequency noise, which are correlated between the two samples, are effectively cancelled.

    AB - This work presents a low power ECG interface for wearable applications, based on unipolar a-IGZO TFTs manufactured on a flexible substrate. The interface consists of a cascaded diode-connected load preamplifier followed by a reset integrator, which is used to convert the voltage signal to a pulse-width modulated (PWM) representation. The output is thus provided as a binary PWM waveform, which can be conveniently sent to a reader device using wireless communication and can be further converted to a digital representation using a simple counter. The flicker noise and the offset are eliminated using an approach similar to correlated double sampling. An input chopper is exploited to alternate the connection between the inputs of the preamplifier for each sample. The output signal is then extracted by subtracting two consecutive samples after conversion to the digital domain. In this way offset and low-frequency noise, which are correlated between the two samples, are effectively cancelled.

    KW - bio-signal read out

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    Zulqarnain M, Stanzione S, van der Steen JLPJ, Gelinck GH, Myny K, Cantatore E. A low power time domain ECG interface based on flexible a-IGZO TFTs. In Proceedings - 2019 8th International Workshop on Advances in Sensors and Interfaces, IWASI 2019. Piscataway: Institute of Electrical and Electronics Engineers. 2019. blz. 205-209. 8791321. Beschikbaar vanaf, DOI: 10.1109/IWASI.2019.8791321