Title
A 52 μw Heart-Rate Measurement Interface Fabricated on a Flexible Foil with A-IGZO TFTs
Author
Zulqarnain, M.
Stanzione, S.
van der Steen, J.L.P.J.
Gelinck, G.H.
Myny, K.
Abdinia, S.
Cantatore, E.
Publication year
2018
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. © 2018 IEEE.
Subject
Bio-signal read out
PWM
voltage to pulse width conversion
Fabrication
Heart
Pulse width modulation
Semiconducting indium compounds
Wireless telecommunication systems
1/F noise
Biosignals
Experimental characterization
Heart rate measurements
IGZO
Pulsewidths
Wearable applications
Wireless communications
Thin film transistors
To reference this document use:
http://resolver.tudelft.nl/uuid:818a3044-e810-4bdd-8d89-c6d5fbab2c17
TNO identifier
843677
Publisher
Institute of Electrical and Electronics Engineers Inc.
ISBN
9781538654040
Source
44th IEEE European Solid State Circuits Conference, ESSCIRC 2018, 3 September 2018 through 6 September 2018, 126-129
Article number
8494298
Bibliographical note
Conference Paper
Document type
conference paper