VDAC output in 4V mode when PSoC 3/5 is operating at 3.3V

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    Question: If PSoC 3/5 is running at 3.3 V and VDAC is running in 4 V mode, what will be the expected output?

     

    Answer:

    Irrespective of the operating voltage, step size will be the same. But output will saturate at about Vdda – 100mV.