Internal Voltage Reference (VREF) Characteristics

Table 1. Internal Voltage Reference (VREF) Characteristics(1)
Symbol Description Min. Typ. Max. Units Conditions
VVREF_1V024(2) Internal Voltage Reference 1.024V — ±4 — % VDD ≥ 2.5V, -40°C to 85°C
VVREF_2V048(2) Internal Voltage Reference 2.048V — ±4 — % VDD ≥ 2.5V, -40°C to 85°C
VVREF_4V096(2) Internal Voltage Reference 4.096V — ±4 — % VDD ≥ 4.55V, -40°C to 85°C
VVREF_2V500(2) Internal Voltage Reference 2.5V — ±4 — % VDD ≥ 2.7V, -40°C to 85°C
TVREF_ST VREF start-up time — 50 — μs  
Notes:
  1. 1.These values are based on characterization and not covered by production test limits.
  2. 2.The symbol VVREF_xVxxx refers to the respective values of the REFSEL bit fields in the VREF.ADC0REF, VREF.DAC0REF and VREF.ACREF registers.
Parent topic: AC Characteristics