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http://dx.doi.org/10.7471/ikeee.2014.18.1.172

Analog Front-End Design Techniques and Method for Saturation of Hemoglobin with Oxygen Sensor  

Park, Sejin (School of Electrical Engineering, Korea University)
Lee, Hokyu (School of Electrical Engineering, Korea University)
Park, Jongsun (School of Electrical Engineering, Korea University)
Kim, Chulwoo (School of Electrical Engineering, Korea University)
Publication Information
Journal of IKEEE / v.18, no.1, 2014 , pp. 172-178 More about this Journal
Abstract
This paper describes the design technique and the method of analog front-end to measure the saturation of hemoglobin with oxygen sensor. To process the $SpO_2$ value from the sensor, the current data from the sensor should be converted into voltage domain. Designed analog front-end usually converts the current data from the sensor into voltage domain data to pass it on analog-to-digital converter called ADC with a different level of gain characteristics. This circuit was fabricated in a $0.11{\mu}m$ CMOS technology and has 4 level of gain properties. The occupied area is $0.174mm^2$.
Keywords
Analog front-end; $SpO_2$ measurement; Sensor; Hemoglobin with oxygen; Analog-to-digital converter;
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