AT90PWM2/3/2B/3B
26.7 ADC Characteristics
Table 26-5. ADC Characteristics - TA = -40°C to +105°C, VCC = 2.7V to 5.5V (unless otherwise noted)
Symbol
Parameter
Condition
Min
Typ
10
8
Max
Units
Bits
Single Ended Conversion
Differential Conversion
Single Ended Conversion
Resolution
Bits
V
REF = 2.56V
2.5
3
7
LSB
LSB
LSB
LSB
ADC clock = 500 kHz
Single Ended Conversion
VREF = 2.56V
6 (*)
ADC clock = 1MHz
Single Ended Conversion
VREF = 2.56V
20
3
Absolute accuracy
ADC clock = 2MHz
Differential Conversion
2
VREF = 2.56V
ADC clock = 500 kHz
Differential Conversion
3 (1)
1.1
4
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
VREF = 2.56V
ADC clock = 1MHz
Single Ended Conversion
VCC = 4.5V, VREF = 2.56V
1.5
1
ADC clock = 1MHz
Single Ended Conversion
VCC = 4.5V, VREF = 2.56V
ADC clock = 500 kHz
0.6
1.5
1
Integral Non-linearity
Differential Conversion
VCC = 4.5V, VREF = 2.56V
ADC clock = 1MHz
2
Differential Conversion
VCC = 4.5V, VREF = 2.56V
1.5
0.6
0.5
0.8
0.8
ADC clock = 500 kHz
Single Ended Conversion
VCC = 4.5V, VREF = 4V
ADC clock = 1MHz
0.4
0.3
0.5
0.4
Single Ended Conversion
VCC = 4.5V, VREF = 4V
ADC clock = 500 kHz
Differential Non-linearity
Differential Conversion
VCC = 4.5V, VREF = 4V
ADC clock = 1MHz
Differential Conversion
VCC = 4.5V, VREF = 4V
ADC clock = 500 kHz
305
4317J–AVR–08/10
ATMEL [ ATMEL ]
