Datasheet

269
ATmega48/88/168 Automotive [DATASHEET]
7530K–AVR–07/14
Figure 27-3. SPI Interface Timing Requirements (Slave Mode)
27.2 ADC Characteristics
9
MSB
SS
SCK
(CPOL = 0)
SCK
(CPOL = 1)
MOSI
(Data Input)
MISO
(Data Output)
MSB LSB X
LSB
...
...
13
14
17
15
10
16
11
11
12
Table 27-3. ADC Characteristics
Parameter Condition Symbol Min Typ Max Unit
Resolution 10 Bits
Absolute accuracy (including
INL, DNL, quantization error,
gain and offset error)
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
2 3.5 LSB
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
noise reduction mode
2 3.5 LSB
Integral non-linearity (INL)
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
0.6 2.5 LSB
Differential non-linearity (DNL)
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
0.30 1.0 LSB
Gain error
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
–3.5 –1.3 3.5 LSB
Offset error
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
1.8 3.5 LSB
Conversion time Free running conversion 13 cycles µs
Clock frequency 50 200 kHz
Analog supply voltage AV
CC
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
25.6 32 38.4 kW
Analog input resistance R
AIN
100 MW