Only eleven bits from the twelve bit ADC

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Anonymous
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Hi

   

Newby here. I am using a PSoc4200 (CY84245AXI-483). I have an ADC setup with a 5v reference (VDDA). I can only get 11 bits of resolution out of the ADC and I cannot seem to find anything in the datasheet to suggest that I cannot get 12 bits. What am I doing wrong or do I only get 11 bits from a 12bit ADC.

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