2.2.1 ADC May Have Missing Codes in Single Ended (SE) Unsigned Mode at Low Temp. and Low V_CC

The ADC may have missing codes in SE unsigned mode below 0°C when V_CC is below 1.8V.

Workaround

Use the ADC in SE signed mode.

Affected Silicon Revisions


ATxmega16A4U
Rev. A - D	Rev. E
*	X


ATxmega32A4U
Rev. A - D	Rev. E
*	X


ATxmega64A4U
Rev. A-B	Rev. C	Rev. D
*	X	X


ATxmega128A4U
Rev. A
X