1
' to the Output Pad Enable (OUTEN) bit in the Control A
(ACn.CTRLA) register1
' to the ENABLE bit in ACn.CTRLADuring the start-up time after enabling the AC, the output of the AC may be invalid.
The start-up time of the AC by itself is at most 2.5 µs. If an internal reference is used, the reference start-up time is normally longer than the AC start-up time.
To avoid the pin being tri-stated when the AC is disabled, the OUT pin must be configured as output in PORTx.DIR.