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

Table 38-13. 

Standard Operating Conditions (unless otherwise stated)

VDD = 3.0V, TA = 25°C, TAD = 1μs

Param No.Sym.CharacteristicMin.Typ. †Max.UnitsConditions
AD01NRResolution——10bit
AD02EILIntegral Error—±0.1±1.0LSbADCREF+=3.0V, ADCREF- = 0V
AD03EDLDifferential Error—±0.1±1.0LSbADCREF+=3.0V, ADCREF- = 0V
AD04EOFFOffset Error—0.5±3.0LSbADCREF+=3.0V, ADCREF- = 0V
AD05EGNGain Error—±0.2±1.5LSbADCREF+=3.0V, ADCREF- = 0V
AD06VADREFADC Reference Voltage (ADREF+ - ADREF-)1.8—VDDV
AD07VAINFull-Scale RangeADREF-—ADREF+V
AD08ZAINRecommended Impedance of Analog Voltage Source—10—kΩ
AD09RVREFADC Voltage Reference Ladder Impedance—50—kΩ(Note 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 non-linearity (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.