43.4.5 Analog-to-Digital Converter (ADC) Accuracy Specifications⁽¹⁾

Table 43-11.
Standard Operating Conditions (unless otherwise stated) V_DD = 3.0V, T_A = 25°C, T_AD = 1 μs, F_OSC ≤ 8 MHz, ADC_VREF = V_DD/V_SS, Differential Mode
Param No.	Sym.	Characteristic	Min.	Typ. †	Max.	Units	Conditions
AD01	N_R	Resolution	—	—	12	bit
AD02*	E_IL	Integral Nonlinearity Error	-6	±0.5	+6	LSb	ADC_REF+ = 3.0V, ADC_REF- = 0V
AD03*	E_DL	Differential Nonlinearity Error	-1	±0.5	+2.5	LSb	ADC_REF+ = 3.0V, ADC_REF- = 0V
AD04*	E_OFF	Offset Error	-11.5	±3	+11.5	LSb	ADC_REF+ = 3.0V, ADC_REF- = 0V
AD05*	E_GN	Gain Error	-4	±1	+4	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	V_SS	—	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 2)
* 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. This is the impedance seen by the V_REF pads when the external reference pads are selected.

43.4.5 Analog-to-Digital Converter (ADC) Accuracy Specifications(1)