STM32L4 - internal routing of opamp output to ADC

[oscarw]

I'm trying to use the internal op-amps of an STM32L471 to amplify a small current-sense voltage before measuring it via ADC. This figure from the relevant product training resource shows an internal arrow labelled "ADC," coming from the op-amp output. I assumed this meant the output from an internal opamp could be internally routed to the input of an ADC. 

However, I can't find a way to do this, in STM32CubeIDE or in the documentation. This should be possible, right? Would appreciate any info/advice, before I have to start bodging it externally...

Cheers

[waclawek.jan · Accepted solution]

The OPAMP output and ADC input are simply tied together on given pin:

JW

[TDK]

As JW said, they're on the same pin. It also seems like CubeMX lets you choose to connect them with the appropriate setting (via the VOUT pin).

[oscarw]

Perfect. Not sure how I missed that, thanks to both of you for the info.