Absolute max rating for ADC pins on STM32G071 device family

[BDubo.1]

We are using STM32G071 device family in our projects and need information on absolute maximum ratings for voltage on ADC pins.

Datasheet states different values for different pins.

Can you please confirm what are the abs max values for ADC pins on STM32G071CB, STM32G071GB and STM32071EB device family?

Please advise.

Thanks!

[RomainR.]

Hello @BDubo.1 (Community Member)

It depends to the I/O structure your are using (the GPIO itself)

I'm referring to datasheet DS12232 Rev 4 STM32G071x8/xB.

Table 11 indicates the legend of I/O structure:

FT_a: 5 V tolerant I/O, with analog switch function.

TT_a: 3.6 V tolerant I/O, with analog switch function.

Depending to the GPIO you need, you will find the information in Table 12. Pin assignment and description concerning IO Structure and additionnals function.

As an example: PA0 is FT_a and ADC_IN0 function.

Then, the Table 30. indicates AMR for VIN depending I/O structure.

For PA0 FT_a .

VIN(AMR) = Min(VDDA) + 4.0V. and it may cause permanent damage to the device.

And Table 33. General operating conditions.

VIN = Min(VDDA) +3.6V.

I suggest also the application note AN4899 chapter 5.

Regards,

romain,

[BDubo.1]

Thank you Romain!

This is exactly what we needed.

Thanks!

[RomainR.]

Good new, and thank you to select answer as Best.

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