Maxim Integrated MAXREFDES103 - SpO2 Calibration

Maxim Integrated Page 41 of 42
SpO
2
Calibration
To obtain accurate SpO
2
measurements, the SpO
2
coefficients must be determined using the
final product form factor and product cover lens. The SpO
2
coefficients are set by sending a
message through the I
2
C interface, which is detailed in the MAX32664 User Guide.
For calculations used to determine the SpO
2
value and an explanation of how to calculate the
SpO
2
coefficients for the end product, refer to Maxim Application Note 6845, Guidelines for SPO2
Measurement Using the Maxim® MAX32664 Sensor Hub.