ATMEGA169PA-AN Atmel, ATMEGA169PA-AN Datasheet - Page 230
ATMEGA169PA-AN
Manufacturer Part Number
ATMEGA169PA-AN
Description
MCU AVR 384KB FLASH 16MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA169PA-AN
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
54
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Part Number
Manufacturer
Quantity
Price
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22.8
8284A–AVR–10/10
ADC Conversion Result
• Differential Non-linearity (DNL): The maximum deviation of the actual code width (the interval
Figure 22-13. Differential Non-linearity (DNL)
• Quantization Error: Due to the quantization of the input voltage into a finite number of codes, a
• Absolute Accuracy: The maximum deviation of an actual (unadjusted) transition compared to
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
Table 22-3 on page 232
0x3FF represents the selected reference voltage minus one LSB.
between two adjacent transitions) from the ideal code width (1 LSB). Ideal value: 0 LSB.
range of input voltages (1 LSB wide) will code to the same value. Always ± 0.5 LSB.
an ideal transition for any code. This is the compound effect of offset, gain error, differential
error, non-linearity, and quantization error. Ideal value: ± 0.5 LSB.
ATmega169A/169PA/329A/329PA/649A/649P/3290A/3290PA/6490A/6490P
IN
is the voltage on the selected input pin and V
Output Code
0x000
0x3FF
and
0
Table 22-4 on page
1 LSB
ADC
ADC
=
(
---------------------------------------------------- -
=
V
POS
V
--------------------------
IN
V
–
⋅
REF
V
V
1024
233). 0x000 represents analog ground, and
REF
NEG
REF
) 512
⋅
the selected voltage reference (see
V
REF
Input Voltage
230
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