Electrical Characteristics - ADC

A clarification has been made for ADC Specifications in the ADC Accuracy Specifications table.

Table 37-23. ADC Accuracy Specifications

Operating Conditions:
  • VDD = 3.0V
  • TA = 25ºC
Symbol Description Min. Typ. ✝ Max. Unit Conditions
NR Resolution 12 bit  
EINL Integral nonlinearity error -1 0.1 1 LSb VDD = VREF = 3.0V
EDNL Differential nonlinearity error(1) -1 0.1 1 LSb VDD = VREF = 3.0V
EOFF Offset error 1.3 3 5 LSb VDD = VREF = 3.0V
EGAIN Gain error -5 1.5 5 LSb VDD = VREF = 3.0V
EABS Absolute error LSb VDD = VREF = 3.0V
VADCREF ADC reference voltage 1.8 VDD V  
VAIN Full-scale range GND VADCREF V  
ZAIN Recommended impedance of analog voltage source 1  
RVREFA ADC voltage reference ladder impedance(2) 50  

Data in the “Typ.” column is at TA = 25°C and VDD = 3.0V unless otherwise specified. These parameters are for design guidance only and are not tested.

Notes:
  1. 1.The ADC conversion result never decreases with an increase in the input and has no missing codes.
  2. 2.This is the impedance seen by the VREFA pin when the external reference is selected.