45.4.7 Analog-to-Digital Converter (ADC) Accuracy Specifications(1,2)

Table 45-13. 

Standard Operating Conditions (unless otherwise stated)

VDD = 3.0V, TA = 25°C, TAD = 500ns

Param No.Sym.CharacteristicMin.Typ. †Max.UnitsConditions
AD01NRResolution——10bit
AD02EILIntegral Non-Linearity Error-20.12LSbADCREF+ = 3.0V,

ADCREF- = 0V

AD03EDLDifferential Non-Linearity Error-10.11LSbADCREF+ = 3.0V,

ADCREF- = 0V

AD04EOFFOffset Error-60.56LSbADCREF+ = 3.0V,

ADCREF- = 0V

AD05EGNGain Error-60.26LSbADCREF+ = 3.0V,

ADCREF- = 0V

AD06*VADREFADC Reference Voltage (ADREF+ - ADREF-)1.8—VDDV
AD07*VAINFull-Scale RangeADREF-—ADREF+V
AD08*ZAINRecommended Impedance of Analog Voltage Source—1—kΩ
AD09*RVREFADC Voltage Reference Ladder Impedance—50—kΩ(3)

* These parameters are characterized but not tested.

† Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not tested.

Note:
  1. Total Absolute Error is the sum of the offset, gain and integral nonlinearity (INL) errors.
  2. The ADC conversion result never decreases with an increase in the input and has no missing codes.
  3. This is the impedance seen by the VREF pads when the external reference pads are selected.