Datasheet

336
8018P–AVR–08/10
ATmega169P
28.7 ADC Characteristics – Preliminary Data
Table 28-7. ADC Characteristics
Symbol Parameter Condition Min Typ Max 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, V
CC
= 4V,
ADC clock = 200 kHz
22.5
LSB
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 1 MHz
4.5
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
Noise Reduction Mode
2
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 1 MHz
Noise Reduction Mode
4.5
Integral Non-Linearity (INL)
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
0.5
Differential Non-Linearity (DNL)
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
0.25
Gain Error
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
2
Offset Error
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
2
Conversion Time Free Running Conversion 13 260 µs
Clock Frequency Single Ended Conversion 50 1000 kHz
AVCC Analog Supply Voltage V
CC
- 0.3 V
CC
+ 0.3
V
V
REF
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 V
REF
Differential Channels
(1)
-0.85V
REF
V
REF
Input Bandwidth
Single Ended Channels 38.5
kHz
Differential Channels 4