?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Ultra-Low-Power+PPG+Analog+Signal+Processing+Circuit+for+Continuous+Blood+Pressure+Estimation&rft.creator=Serrano%2C+RRM&rft.creator=Jiang%2C+D&rft.creator=Demosthenous%2C+A&rft.description=This+paper+describes+a+novel+photoplethysmography-based+blood+pressure+estimation+circuit+developed+as+a+noninvasive+and+continuous+alternative+to+current+clinical+blood+pressure+monitoring+devices.+The+system+integrates+the+functionalities+of+analogue+front-end+and+analogue-to-digital+converter+elements+in+conventional+photoplethysmography+sensors+and+extracts+features+related+to+blood+pressure+on+chip.+The+topology+operates+in+analogue+domain%2C+current+mode+and+ultra-low-power%2C+thus+suppressing+digitisation+and+current-to-voltage+conversion+errors+and+reducing+overall+power+consumption.+The+circuit+has+been+designed+in+CMOS+65+nm+technology.+It+employs+a+1.5+V+supply%2C+consumes+%E2%88%BC345+nW+(five+times+less+power+than+state-of-the-art)+and+generates+feature+voltages+with+a+50+mV+max.+deviation.+A+linear+regressor+trained+with+the+extracted+features+achieves+0.7%C2%B10.9+mmHg+accuracy+(grade+A+performance).+The+operation+of+the+topology+is+described+and+results+depicting+its+performance+are+presented.&rft.publisher=Institute+of+Electrical+and+Electronics+Engineers+(IEEE)&rft.date=2022&rft.type=Proceedings+paper&rft.language=eng&rft.source=+++++In%3A++Proceedings+of+the+29th+IEEE+International+Conference+on+Electronics%2C+Circuits+and+Systems+(ICECS)+2022.++(pp.+pp.+1-4).++Institute+of+Electrical+and+Electronics+Engineers+(IEEE)+(2022)+++++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery-pp.ucl.ac.uk%2Fid%2Feprint%2F10164293%2F1%2FUltra-Low-Power_PPG_Analog_Signal_Processing_Circuit_for_Continuous_Blood_Pressure_Estimation.pdf&rft.identifier=https%3A%2F%2Fdiscovery-pp.ucl.ac.uk%2Fid%2Feprint%2F10164293%2F&rft.rights=open