A Low-Power Photoplethysmogram-Based Heart Rate Sensor Using Heartbeat Locked Loop

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In this paper, we present an ultralow power heart rate (HR) monitoring photoplethysmography (PPG) sensor using a heartbeat locked loop (HBLL). The HBLL generates a narrow window that turns on the LED and analog-front-end only when a peak is expected in the PPG signal. The prototype PPG sensor implemented in 0.18 mu m CMOS has an effective duty-cycle of 0.01% and consumes only 43.4 mu W at a HR of 60 b/m, which is the lowest power consumption compared with previous state-of-the-art PPG sensors. The HR error of the proposed sensor is less than 2.1 b/m for HR below 180 b/m.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2018-12
Language
English
Article Type
Article; Proceedings Paper
Citation

IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, v.12, no.6, pp.1220 - 1229

ISSN
1932-4545
DOI
10.1109/TBCAS.2018.2876671
URI
http://hdl.handle.net/10203/250220
Appears in Collection
EE-Journal Papers(저널논문)
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