![](http://datasheet.mmic.net.cn/90000/MD80C154-12-883_datasheet_2373954/MD80C154-12-883_300.png)
300
ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P [DATASHEET]
8285E–AVR–02/2013
28.9
ADC characteristics
Note:
1. Voltage difference between channels.
Table 28-17. ADC characteristics.
Symbol
Parameter
Condition
Minimum
Typical
Maximum
Units
Resolution
Single Ended Conversion
10
Bits
Differential Conversion
8
Absolute accuracy
(Including INL, DNL,
quantization error, gain
and offset error)
Single Ended Conversion
V
REF = 4V, VCC = 4V, ADC clock = 200kHz
22.5
LSB
Single Ended Conversion
VREF = 4V, VCC = 4V, ADC clock = 1MHz
2.5
Single Ended Conversion
VREF = 4V, VCC = 4V, ADC clock = 200kHz
Noise Reduction Mode
2
Single Ended Conversion
VREF = 4V, VCC = 4V, ADC clock = 1MHz
Noise Reduction Mode
2.5
Integral Non-Linearity
(INL)
Single Ended Conversion
VREF = 4V, VCC = 4V, ADC clock = 200kHz
1.25
Differential Non-Linearity
(DNL)
Single Ended Conversion
VREF = 4V, VCC = 4V, ADC clock = 200kHz
0.25
Gain Error
Single Ended Conversion
V
REF = 4V, VCC = 4V, ADC clock = 200kHz
2
Offset Error
Single Ended Conversion
VREF = 4V, VCC = 4V, ADC clock = 200kHz
1.25
Conversion Time
Free Running Conversion
13
260
s
Clock Frequency
Single Ended Conversion
50
1000
kHz
AVCC
Analog Supply Voltage
V
CC - 0.3
V
CC + 0.3
V
VREF
Reference Voltage
Single Ended Conversion
1.0
AVCC
Differential Conversion
1.0
AVCC - 0.5
V
IN
Pin Input Voltage
Single Ended Channels
GND
V
REF
Differential Channels
GND
AVCC
Input Range
Single Ended Channels
GND
VREF
Differential Channels
(1)-0.85V
REF
V
REF
Input Bandwidth
Single Ended Channels
38.5
kHz
Differential Channels
4
VINT
Internal Voltage
Reference
1.0
1.1
1.2
V
RREF
Reference Input
Resistance
32
k
RAIN
Analog Input Resistance
100
M