Title :
Trade-offs for low power integrated pulse oximeters
Author :
Glaros, K.N. ; Drakakis, E.M.
Author_Institution :
Dept. of Bioeng., Imperial Coll. London, London, UK
Abstract :
The paper presents detailed trade-offs encountered in the design of low-power integrated pulse oximeters (PO). The significance and interdependence of parameters such as the switching frequency, duty cycle, settling speed, stability and capacitor area and their role in system power and noise are discussed thoroughly. Quantitative relations between these parameters are derived and numerical examples with typical values given.
Keywords :
biomedical electronics; blood; chemical sensors; integrated circuit design; integrated circuits; low-power electronics; oxygen; plethysmography; capacitor area; duty cycle; low power integrated pulse oximeter design; settling speed; stability; switching frequency; system noise; system power; Blood; Circuits; Energy consumption; Frequency; Light emitting diodes; Pulse amplifiers; Pulse measurements; Pulse modulation; Signal design; Signal resolution; SpO2; low-power; oximeters; pulse oximetry;
Conference_Titel :
Biomedical Circuits and Systems Conference, 2009. BioCAS 2009. IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4917-0
Electronic_ISBN :
978-1-4244-4918-7
DOI :
10.1109/BIOCAS.2009.5372039
