Datasheet
ATmega48PA/88PA/168PA [DATASHEET]
9223F–AVR–04/14
276
Figure 29-5. Two-wire Serial Bus Timing
29.8 ADC Characteristics
SDA
SCL
t
LOW
t
BUF
t
HD;DAT
t
HD;STA
t
SU;DAT
t
SU;STO
t
SU;STA
t
HIGH
t
R
t
OF
t
LOW
Table 29-9. ADC Characteristics
Parameter Condition Symbol Min. Typ Max Unit
Resolution
–40°C to 125°C,
2.70V to 5.50V
ADC clock = 200kHz
10 Bits
Absolute accuracy V
CC
= 4V, V
REF
= 4V TUE 2.2 3.5 LSB
Integral non-linearity V
CC
= 4V, V
REF
= 4V INL 0.6 1.5 LSB
Differential non-linearity V
CC
= 4V, V
REF
= 4V DNL 0.3 0.7 LSB
Gain error V
CC
= 4V, V
REF
= 4V –4.0 3.0 LSB
Offset error V
CC
= 4V, V
REF
= 4V –3.5 3.5 LSB
Clock frequency 50 200 kHz
Analog supply voltage AV
CC
(1)
V
CC
– 0.3 V
CC
+ 0.3 V
Reference voltage V
REF
1.0 AV
CC
V
Input voltage V
IN
GND V
REF
V
Input bandwidth 38.5 kHz
Internal voltage reference V
INT
1.0 1.1 1.2 V
Reference input resistance R
REF
22 32 42 k
Analog input resistance R
AIN
100 M
Note: 1. AV
CC
absolute min./max: 2.7V/5.5V