Datasheet

307
4317K–AVR–03/2013
AT90PWM2/3/2B/3B
26.7 ADC Characteristics
Table 26-5. ADC Characteristics - T
A
= -40C to +105C, V
CC
= 2.7V to 5.5V (unless otherwise noted)
Symbol Parameter Condition Min Typ Max Units
Resolution
Single Ended Conversion 10 Bits
Differential Conversion 8 Bits
Absolute accuracy
Single Ended Conversion
V
REF
= 2.56V
ADC clock = 500 kHz
2.5 3 LSB
Single Ended Conversion
V
REF
= 2.56V
ADC clock = 1MHz
6 (*) 7 LSB
Single Ended Conversion
V
REF
= 2.56V
ADC clock = 2MHz
20 LSB
Differential Conversion
V
REF
= 2.56V
ADC clock = 500 kHz
23LSB
Differential Conversion
V
REF
= 2.56V
ADC clock = 1MHz
3
(1)
4LSB
Integral Non-linearity
Single Ended Conversion
V
CC
= 4.5V, V
REF
= 2.56V
ADC clock = 1MHz
1.1 1.5 LSB
Single Ended Conversion
V
CC
= 4.5V, V
REF
= 2.56V
ADC clock = 500 kHz
0.6 1 LSB
Differential Conversion
V
CC
= 4.5V, V
REF
= 2.56V
ADC clock = 1MHz
1.5 2 LSB
Differential Conversion
V
CC
= 4.5V, V
REF
= 2.56V
ADC clock = 500 kHz
11.5LSB
Differential Non-linearity
Single Ended Conversion
V
CC
= 4.5V, V
REF
= 4V
ADC clock = 1MHz
0.4 0.6 LSB
Single Ended Conversion
V
CC
= 4.5V, V
REF
= 4V
ADC clock = 500 kHz
0.3 0.5 LSB
Differential Conversion
V
CC
= 4.5V, V
REF
= 4V
ADC clock = 1MHz
0.5 0.8 LSB
Differential Conversion
V
CC
= 4.5V, V
REF
= 4V
ADC clock = 500 kHz
0.4 0.8 LSB