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

Table 39-13. 

Standard Operating Conditions (unless otherwise stated)

VDD = 3.0V, TA = 25°C, TAD = 1μs
Param No. Sym. Characteristic Min. Typ. † Max. Units Conditions
AD01 NR Resolution — — 12 bit
AD02 EIL Integral Error — ±0.2 ±2.0 Lsb ADCREF+=3.0V, ADCREF- = 0V
AD03 EDL Differential Error — ±1.0 ±1.0 Lsb ADCREF+=3.0V, ADCREF- = 0V
AD04 EOFF Offset Error — 0.5 6.5 Lsb ADCREF+=3.0V, ADCREF- = 0V
AD05 EGN Gain Error — ±0.2 ±6.0 Lsb ADCREF+=3.0V, ADCREF- = 0V
AD06 VADREF ADC Reference Voltage (ADREF+ - ADREF-) 1.8 — VDD V
AD07 VAIN Full-Scale Range ADREF- — ADREF+ V
AD08 ZAIN Recommended Impedance of Analog Voltage Source — 10 — kΩ
AD09 RVREF ADC Voltage Reference Ladder Impedance — 50 — kΩ

* - 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.