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

Table 47-13.
Standard Operating Conditions (unless otherwise stated) V_DD = 3.0V, T_A = 25°C, T_AD = 500 ns
Param No.	Sym.	Characteristic	Min.	Typ. †	Max.	Units	Conditions
AD01	N_R	Resolution	—	—	12	bit
AD02	E_IL	Integral Non-Linearity Error	—	±0.1	±2.0	LSb	ADC_REF+ = 3.0V, ADC_REF- = 0V
AD03	E_DL	Differential Non-Linearity Error	—	±0.1	±1.0	LSb	ADC_REF+ = 3.0V, ADC_REF- = 0V
AD04	E_OFF	Offset Error	—	0.5	6.0	LSb	ADC_REF+ = 3.0V, ADC_REF- = 0V
AD05	E_GN	Gain Error	—	±0.2	±6.0	LSb	ADC_REF+ = 3.0V, ADC_REF- = 0V
AD06	V_ADREF	ADC Reference Voltage (AD_REF+ - AD_REF-)	1.8	—	V_DD	V
AD07	V_AIN	Full-Scale Range	AD_REF-	—	AD_REF+	V
AD08	Z_AIN	Recommended Impedance of Analog Voltage Source	—	1	—	kΩ
AD09	R_VREF	ADC 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: Total Absolute Error is the sum of the offset, gain and integral nonlinearity (INL) errors. The ADC conversion result never decreases with an increase in the input and has no missing codes. This is the impedance seen by the V_REF pads when the external reference pads are selected.

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