38.14 VREF

Table 38-20. Internal Voltage Reference Characteristics
Symbol Description Min. Typ. Max. Unit
tstart Start-up time - 25 - µs
VDDINT055V Power supply voltage range for INT055V 2.7 - 5.5 V
VDDINT11V Power supply voltage range for INT11V 2.7 - 5.5
VDDINT15V Power supply voltage range for INT15V 2.7 - 5.5
VDDINT25V Power supply voltage range for INT25V 2.9 - 5.5
VDDINT43V Power supply voltage range for INT43V 4.75 - 5.5
Table 38-21. ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min. Typ. Max. Unit
INT11V Internal reference voltage

VDD=[2.7V, 3.6V]
T=[0 - 105]°C

-2.0 2.0 %

INT055V
INT15V
INT25V

 Internal reference voltage

VDD=[2.7V, 3.6V]
T=[0 - 105]°C

 -3.0 3.0

INT055V
INT11V
INT15V
INT25V
INT43V

 Internal reference voltage

VDD=[2.7V, 5.5V]
T=[-40 -   125]°C

 -5.0 5.0
Note:
  1. These values are based on characterization and not covered by production test limits.
  2. The symbols INTxxV refer to the respective values of the ADC0REFSEL and DAC0REFSEL bit fields in the VREF.CTRLA register.
Table 38-22. DAC and AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min. Typ. Max. Unit

INT055V
INT11V
INT15V
INT25V

 Internal reference voltage

VDD=[2.7V, 3.6V]
T=[0 - 105]°C

 -3.0 3.0 %

INT055V
INT11V
INT15V
INT25V
INT43V

 Internal reference voltage

VDD=[2.7V, 5.5V]
T=[-40 -  125]°C

 -5.0 5.0
Note:
  1. These values are based on characterization and not covered by production test limits.
  2. The symbols INTxxV refer to the respective values of the ADC0REFSEL and DAC0REFSEL bit fields in the VREF.CTRLA register.