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Core-Microconverter-Slide40

The discussion will now focus on how the an ADC result will be represented for the case of a single ended conversion. Single ended and pseudo differential conversions uses the Unipolar ADC transfer function with a zero input represented by 0 hex and full scale by 0x0FFF0000 hex. This example uses the internal 2.5V reference. If a 1.25V input is applied to the ADC input the ADC will read this as 1.25V returning a result of 0x08000000 hex.

PTM Published on: 2006-06-30