Paper Info
Title
A 20.1-μW 1.8 -GHz Near-Field Dielectric Plethysmography (NF-DPG) Heart-Rate Sensor with Time-based Edge Sampling
Abstract
This paper presents a near-field dielectric plethysmography (NF-DPG) heart-rate sensor for low-power operation. By interrogating the contracting and expanding blood vessels with GHz-frequency fringing electric fields from the on-board coplanar electrodes, pulsing heart-rate signals are detected through changing permittivity at the fingertips. The sensor employs large-signal time-based edge sampling and double-integration chopper stabilization technique to maximize the sensitivity and to minimize the flicker noise. Implemented in 0.18-μm CMOS technology, the NF-DPG heart-rate sensor consumes 20.1 μW at a 100-Hz sampling rate while achieving an RMS inaccuracy of 1.64 bpm.
Year
DOI
Venue
2019
10.1109/CICC.2019.8780179
2019 IEEE Custom Integrated Circuits Conference (CICC)
Keywords
Field
DocType
Dielectric,plethysmography,near fields,heart-rate sensor,time-based signal processing,chopper stabilization
Permittivity,Flicker noise,Electric field,Dielectric,Computer science,Sampling (signal processing),Optics,Near and far field,Electronic engineering,CMOS,Chopper
Conference
ISSN
ISBN
Citations 
0886-5930
978-1-5386-9396-4
0
PageRank 
References 
Authors
0.34
2
1
Name
Order
Citations
PageRank
Jun-Chau Chien113019.66