300
ATmega16M1/32M1/64M1 [DATASHEET]
8209E–AVR–11/2012
28.9
ADC characteristics
Table 28-7.
ADC characteristics - T
A = -40C to +85C, VCC = 2.7V to 5.5V (unless otherwise noted).
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units
Resolution
Single Ended Conversion
10
Bits
TUE
Absolute accuracy
V
CC = 5V, VREF = 2.56V, ADC clock = 1MHz
3.2
5.0
LSB
VCC = 5V, VREF = 2.56V, ADC clock = 2MHz
3.2
5.0
INL
Integral non-linearity
V
CC = 5V, VREF = 2.56V, ADC clock = 1MHz
0.7
1.5
VCC = 5V, VREF = 2.56V, ADC clock = 2MHz
0.8
2.0
DNL
Differential non-linearity
VCC = 5V, VREF = 2.56V, ADC clock = 1MHz
0.5
0.8
V
CC = 5V, VREF = 2.56V, ADC clock = 2MHz
0.6
1.2
Gain error
VCC = 5V, VREF = 2.56V, ADC clock = 1MHz
-8.0
-5.0
0.0
VCC = 5V, VREF = 2.56V, ADC clock = 2MHz
-8.0
-5.0
0.0
Offset error
V
CC = 5V, VREF = 2.56V, ADC clock = 1MHz
-2.0
2.5
6.0
VCC = 5V, VREF = 2.56V, ADC clock = 2MHz
-2.0
2.5
6.0
VREF
Reference voltage
2.56
AVCC
V
Resolution
Differential conversion, temp. = -40..85°C
8
Bits
TUE
Absolute accuracy
Gain = 5×, 10×, VCC = 5V, VREF = 2.56V, ADC clock = 2MHz
1.5
3.5
LSB
Gain = 20×, VCC = 5V, VREF = 2.56V, ADC clock = 2MHz
1.5
4.0
Gain = 40×, V
CC = 5V, VREF = 2.56V, ADC clock = 2MHz
1.5
4.5
INL
Integral non-linearity
Gain = 5×, 10×, VCC = 5V, VREF = 2.56V, ADC clock = 2MHz
0.1
1.5
Gain = 20×, V
CC = 5V, VREF = 2.56V, ADC clock = 2MHz
0.2
2.5
Gain = 40×, V
CC = 5V, VREF = 2.56V, ADC clock = 1MHz
0.3
3.5
Gain = 40×, VCC = 5V, VREF = 2.56V, ADC clock = 2MHz
0.7
4.5
DNL
Differential non-linearity
Gain = 5×, 10×, V
CC = 5V, VREF = 2.56V, ADC clock = 2MHz
0.1
1.0
Gain = 20×, V
CC = 5V, VREF = 2.56V, ADC clock = 2MHz
0.2
1.5
Gain = 40×, VCC = 5V, VREF = 2.56V, ADC clock = 2MHz
0.3
2.5
Gain error
Gain = 5×, 10×, V
CC = 5V, VREF = 2.56V, ADC clock = 2MHz
-3.0
3.0
Gain = 20×, 40×, V
CC = 5V, VREF = 2.56V, ADC clock = 2MHz
-3.0
3.0
Offset error
Gain = 5×, 10×, VCC = 5V, VREF = 2.56V, ADC clock = 2MHz
-3.0
3.0
Gain = 20×, 40×, V
CC = 5V, VREF = 2.56V, ADC clock = 2MHz
-4.0
4.0
V
REF
Reference voltage
2.56
AV
CC
-0.5
V