I have connected the OPAMP of the STM32F303 to the ADC input internally.
The opamp has two input pins. VINM and VINP. if I decided to configure it as an amplifier and select the gain (2..16) with software. it is called PGA mode.
I want to have the non-inverting amplification. then I just should connect the input signal to the VINP and the MCU itself will configure the other pin internally? I mean should I let the VINM Pin float?
Has anybody worked with this feature?