Datasheet

Figure 27-7. ADC Power Connections
GND
VCC
PC5 (ADC5/SCL)
PC4 (ADC4/SDA)
PC3 (ADC3)
PC2 (ADC2)
PC1 (ADC1)
PC0 (ADC0)
ADC7
GND
AREF
AVCC
ADC6
PB5
10 µH
100 nF
Analog Ground Plane
Note: If the resistivity in the inductor is too high, the AV
CC
may exceed its range, V
CC
- 0.3V < AV
CC
<
V
CC
+ 0.3V
27.6.3 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.
AVR 8-Bit Microcontroller
ADC - Analog to Digital Converter
© 2017 Microchip Technology Inc.
Datasheet Complete
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