TY - GEN
T1 - A PPG Readout Integrated With RPTT Estimation in Analog For Blood Pressure Measurement
AU - Pandey, Rajeev Kumar
AU - Chao, Paul C.P.
AU - Khyalia, Santosh Kumar
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - This study proposed a Photoplethysmography (PPG) readout system to estimate the reflective pulse transit time (RPTT) in analog domain for the blood pressure measurement. The proposed photodetector readout consists of a sensing circuit, an amplification circuit, and peak-sensing circuits. The designed circuit is fabricated by TSMC 0.18μm 1P6M 1.8V mixed-signal CMOS process. The measurement results show that the design chip consume 50μW and the measured dynamic range is 100 dB. Experimental verification shows that the obtained RPTT from the designed chip is 99.9% correlated with the RPTT obtained after the pre-signal processing of the PPG signal and the measured average difference in RPTT measurement is 15.73 msec. The obtained performance in terms of SBP and DBP shows that the accuracy satisfies the requirement of the AAMI under ± 8 mmHg.
AB - This study proposed a Photoplethysmography (PPG) readout system to estimate the reflective pulse transit time (RPTT) in analog domain for the blood pressure measurement. The proposed photodetector readout consists of a sensing circuit, an amplification circuit, and peak-sensing circuits. The designed circuit is fabricated by TSMC 0.18μm 1P6M 1.8V mixed-signal CMOS process. The measurement results show that the design chip consume 50μW and the measured dynamic range is 100 dB. Experimental verification shows that the obtained RPTT from the designed chip is 99.9% correlated with the RPTT obtained after the pre-signal processing of the PPG signal and the measured average difference in RPTT measurement is 15.73 msec. The obtained performance in terms of SBP and DBP shows that the accuracy satisfies the requirement of the AAMI under ± 8 mmHg.
KW - Blood pressure (BP)
KW - Photoplethysmography (PPG) Sensor
KW - Reflective pulse transit time (RPTT)
KW - filter
UR - http://www.scopus.com/inward/record.url?scp=85167665418&partnerID=8YFLogxK
U2 - 10.1109/ISCAS46773.2023.10181372
DO - 10.1109/ISCAS46773.2023.10181372
M3 - Conference contribution
AN - SCOPUS:85167665418
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
BT - ISCAS 2023 - 56th IEEE International Symposium on Circuits and Systems, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 56th IEEE International Symposium on Circuits and Systems, ISCAS 2023
Y2 - 21 May 2023 through 25 May 2023
ER -