ADC self calibration, needed or not ?

[Stabilo]

Hello,

I have a project where my ADC channels will be calibrated end of line using a calibration bench. I will directly calibrate the physical measurements (voltage and current).

My question is: do I need to implement the ADC self-calibration sequence in my MCU (STM32F0) ? I think the self-calibration can help, but is it needed/advised to do it if I already calibrate ?

I guess the self-calibration will never provide 2 times the same values between 2 MCU start up ?

Thanks!

[TDK]

If you're doing your own calibration, no need to self calibrate. The self-calibration returns very similar values between startups, provided your temperature environment is the same.

[Stabilo]

Thanks 🙂