i need to generate a Sensor Output from 0-5V but I'm using a STM32F042F6. It's a 3.3V MCU.
Can I simply use a Levelshifter to convert the 0-3.3V DAC Output to 0-5V? I fear to lose resolution in that way.
Use OPAMP with gain 1.5. You need to have the 5V (or more) power rail.
If you use 5V power for the opamp you need to choose Rail-Rail opamp