2025-12-01 4:50 AM
I am working with the Nucleo-STM32F753ZI board and using the internal OPAMP peripheral. The supply is 3.3 V, and according to the datasheet the OPAMP output should swing close to the rails, but in my case the maximum output I can get is only around 2.4 V.
Has anyone faced this issue on STM32F7 series?
Is there any configuration, calibration, or internal routing limitation that restricts the OPAMP output range on this board?
Any guidance on how to achieve the full output swing (near 3.3 V) would be helpful.