34.8 ADC Characteristics

Table 34-11. ADC Characteristics
Symbol	Parameter	Condition	Min.	Typ	Max	Units
	Resolution		-	10	-	Bits
	Absolute accuracy (Including INL, DNL, quantization error, gain and offset error)	V_REF = 4V, V_CC = 4V,  ADC clock = 200kHz	-	2	-	LSB
		V_REF = 4V, V_CC = 4V, ADC clock = 1MHz	-	4	-	LSB
		V_REF = 4V, V_CC = 4V, ADC clock = 200kHz Noise Reduction Mode	-	2	-	LSB
		V_REF = 4V, V_CC = 4V, ADC clock = 1MHz  Noise Reduction Mode	-	4	-	LSB
	Integral Non-Linearity (INL)	V_REF = 4V, V_CC = 4V, ADC clock = 200kHz	-	0.5	-	LSB
	Differential Non-Linearity (DNL)	V_REF = 4V, V_CC = 4V, ADC clock = 200kHz	-	0.25	-	LSB
	Gain Error	V_REF = 4V, V_CC = 4V, ADC clock = 200kHz	-	2	-	LSB
	Offset Error	V_REF = 4V, V_CC = 4V, ADC clock = 200kHz	-	2	-	LSB
	Conversion Time	Free Running Conversion	13	-	260	μs
	Clock Frequency		50	-	1000	kHz
AV_CC⁽¹⁾	Analog Supply Voltage		V_CC - 0.3	-	V_CC + 0.3	V
VREF	Reference Voltage		1.0	-	AV_CC	V
V_IN	Input Voltage		GND	-	V_REF	V
	Input Bandwidth		-	38.5		kHz
V_INT	Internal Voltage Reference		1.0	1.1	1.2	V
R_REF	Reference Input Resistance		-	50	-	kΩ
R_AIN	Analog Input Resistance		-	100	-	MΩ

Note:

ATmega48PB/88PB/168PB