What is noise figure (or input-referred noise density) of STM32H735 OPAMP for differential use? When opamp used in differential mode, should I give VDDA/2 offset to both OPAMP input pins (P and M)?

[Igor Cesko · Accepted solution]

Hi AKoru.1,

The noise density parameters value is written in datasheet: "Voltage noise density". We have no extra figure for noise density.

Regarding the OPAMP differential mode: OPAMP input pins should be within VDDA supply voltage range (not only VDDA/2).

Regards

Igor