Title :
Implementation of ratiometric algorithm to compute partial pressure of Oxygen for a blood oxygen analyser
Author :
Joglekar, Nikhil ; Veljanovski, Ronny ; Zayegh, Aladin
Author_Institution :
Sch. of Electr. Eng., Victoria Univ., Melbourne, VIC, Australia
Abstract :
This paper presents the implementation of ratiometric algorithm based on the Stern-Volmer principle to compute partial pressure of oxygen. The algorithm block sits in a novel bio-signal processor designed for a portable blood oxygen analyzer. The key design constraints of the equation implementation are accuracy (to compete with the traditional blood gas analyzer) and power consumption (to make the whole device portable). All of the arithmetic and logic units have been implemented in a 16-bit floating point format and mapped to 0.35 um CMOS design library using Synopsys Design Analyzer. The addition and multiplication units are implemented using K.C. Chang´s algorithm while the division unit is implemented using Euler´s algorithm.
Keywords :
CMOS logic circuits; bio-optics; blood; chemical sensors; medical signal processing; optical sensors; oxygen; patient diagnosis; 16-bit floating point format; CMOS design library; Euler algorithm; O2; Stern-Volmer principle; Synopsys Design Analyzer; arithmetic units; bio-signal processor; logic units; partial pressure; portable blood oxygen analyser; power consumption; ratiometric algorithm; size 35 mum; Algorithm design and analysis; Blood; CMOS logic circuits; Energy consumption; Equations; Floating-point arithmetic; Logic design; Logic devices; Oxygen; Process design; component; formatting; insert; style; styling;
Conference_Titel :
Integrated Circuits, ISIC '09. Proceedings of the 2009 12th International Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-9-8108-2468-6
