MAX86150EVSYS#

MAX86150EVSYS# Application Field and Working Principle

The MAX86150EVSYS# Evaluation System is a complete application solution for sensing human blood oxygen saturation (SpO2), heart rate (HR), and body temperature (TEMP) from fingertip-based pulse oximeters. This evaluation system targets applications requiring monitoring and recording of a person’s vitals such as remote patient monitoring, clinical monitoring, home healthcare, sports and fitness, and consumer applications. This evaluation system consists of the MAX86150 IC, an eight-part evaluation board MAX86150EVSYS_REV#, and a power plug used to provide power for the board.

Working Principle

The MAX86150EVSYS# Evaluation System works using analog photodetection and LED illumination, combined with digital signal processing. The front of the board contains two LEDs: a red LED (with a peak wavelength of 660nm) and an infrared LED (with a peak wavelength of 940nm). The back of the board contains two photodetectors for sensing the light from each LED. The board also contains the MAX86150 IC, a low-power, near-infrared LED driver with integrated ADCs for each photo-detector.

The MAX86150 IC drives the two LEDs at different distances to illuminate the volume of tissues between the two LEDs. As the volume of oxygenated and deoxygenated hemoglobin changes, the amount of light emitted by each LED is altered. This change in light is detected by the two photodetectors which are monitored by the MAX86150. The MAX86150 then converts the analogue signals from the photodetectors into digital data which is then processed in order to measure oxygen saturation, heart rate, and body temperature.

Application Field

The MAX86150EVSYS# Evaluation System is designed for applications where human vital functions must be monitored and recorded. This includes remote patient monitoring, clinical monitoring, home healthcare, sports and fitness, and consumer applications. The system is also ideal for developers of pulse oximeters who need a complete evaluation platform.

The system has been extensively evaluated, providing accurate and reliable vital data. The evaluations include testing a wide range of human tissues including dry, wet, and hypoxic conditions. It has also been tested in different environmental conditions such as temperature, humidity, and altitude. The evaluation board has been designed to meet safety and regulatory compliance. The system is CE, FCC, and BIS certified.

The system is powered through an integrated power connector and is compatible with a wide range of power sources including USB, 9V battery, and AC/DC adapter. The system provides a complete package, offering a full range of implementation and testing options. It is designed to provide accurate and reliable readings and to be simple and intuitive to use.