Tool/software: TI C/C++ Compiler
Hi Sir,
I was trying to use AFE4403 EVM for some static photoelectric measurements, checking light intensities through solvents with different concentrations.
The LED driving current will be drifted every time(around 20~30 secs) when the Tx is switched on.
The current drift is quite big(8mA->2mA)(with the default setting) in the first second, and it is stable over time.
I measured an experiment that I put EVM with SpO2 sensor in the darkroom. Then I switched on the Tx and captured the result that the phenomenon had happened as well.
I just wonder if possible to reduce/remove these current drifts.
Best Regards,
Rex