258
8025I–AVR–02/09
ATmega48P/88P/168P/328P
and ADC5) will only affect the conversion on ADC4 and ADC5 and not the other ADC
channels.
Figure 21-9. ADC Power Connections
21.6.3 ADC Accuracy Definitions
An n-bit single-ended ADC converts a voltage linearly between GND and V
REF
in 2
n
steps
(LSBs). The lowest code is read as 0, and the highest code is read as 2
n
-1.
Several parameters describe the deviation from the ideal behavior:
• Offset: The deviation of the first transition (0x000 to 0x001) compared to the ideal transition (at
0.5 LSB). Ideal value: 0 LSB.
GND
VCC
PC5 (ADC5/SCL)
PC4 (ADC4/SDA)
PC3 (ADC3)
PC2 (ADC2)
PC1 (ADC1)
PC0 (ADC0)
ADC7
GND
AREF
AVCC
ADC6
PB5
10µH
100nF
Analog Ground Plane
To Next Page
Loading...
Need help?
General
