I do have some doubts with the question? Especially the part where you have mentioned the "destruction of the ADC" . Did you mean to ask whether the device will damaged if a voltage higher than VDDA-1 is provided ? Now regarding the ADC range, the individual pin voltages levels cannot exceed the range specified in the datasheet. Additionally the to differential voltage range will be depended on the reference voltage selected on the component. To add at the end, kindly check the errata section on the limitations on the differential mode regarding at certain input range operation and resolution. There is common mode voltage range restriction in such cases.
to precise my question: I am not sure what the right value for the maximum Voltage on the ADC pins is (mode: buffered, differential, VDDA=5V):
- The range stated on page 38 -> VDDA - 1 or (4V in my case)
- the range on page 12 (and the PSoC Creator) (VSSA + 100mV) - (VDDA - 250mV) -> (100mV - 4,75V in my case)
Which value is the correct one? I guess VDDA - 1?
Exactly. VDDA-1 is the right value to be used. Apologies for the confusion here. We have initiated internal requests to correct the discrepancy between documents and creator.