ATMEGA169 ATMEL [ATMEL Corporation], ATMEGA169 Datasheet - Page 204

• Manufacturer Part Number: ATMEGA169
• Description: 8-bit Microcontroller with 16K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

ADC Conversion Result
204
ATmega169/V
After the conversion is complete (ADIF is high), the conversion result can be found in
the ADC Result Registers (ADCL, ADCH).
For single ended conversion, the result is
where V
ence (see Table 89 on page 205 and Table 90 on page 206). 0x000 represents analog
ground, and 0x3FF represents the selected reference voltage minus one LSB.
Figure 96. Differential Measurement Range
- V
REF
IN
is the voltage on the selected input pin and V
ADC
Output Code
0x3FF
ADC
0x1FF
0x000
0x200
=
0
(
---------------------------------------------------- -
=
V
POS
V
--------------------------
IN
V
–
⋅
REF
V
V
1024
REF
NEG
) 512
⋅
REF
the selected voltage refer-
V
REF
Differential Input
Voltage (Volts)
2514P–AVR–07/06