STM32F030C6T6 ADC reference voltage

[matas]

Posted on October 26, 2015 at 11:37

Hello, I've been going through this STM models datasheet, but I could find info if it is possible, to use the provided Vrefint as ADC reference? In the datasheets I could only find that the ADC reference is Vdd, but since Vdd is not very stable, it would be much better to get the voltage from internal reference as ADC reference. 

[waclawek.jan]

Posted on October 26, 2015 at 11:59

> Hello, I've been going through this STM models datasheet, but I could find info if it is possible, to use the provided Vrefint as ADC reference?

No. You can use Vrefint only indirectly, to ''calibrate'' VDDA. > In the datasheets I could only find that the ADC reference is Vdd, but since Vdd is not very stable It's not VDD, but VDDA Try to make VDDA as stable and ''quiet'' as possible. Read also AN2834. JW

[matas]

Posted on November 02, 2015 at 08:43

Thanx, much appreciated 🙂