Atmel ATmega328 User Manual

329
8271D–AVR–05/11
ATmega48A/PA/88A/PA/168A/PA/328/P
29.8 ADC Characteristics
Note: 1. AV
CC
absolute min./max: 1.8V/5.5V
Table 29-16. ADC Characteristics
Symbol Parameter Condition Min. Typ Max Units
Resolution 10 Bits
Absolute accuracy (Including
INL, DNL, quantization error,
gain and offset error)
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
2LSB
V
REF
= 4V, V
CC
= 4V,
ADC clock = 1MHz
4.5 LSB
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
Noise Reduction Mode
2LSB
V
REF
= 4V, V
CC
= 4V,
ADC clock = 1MHz
Noise Reduction Mode
4.5 LSB
Integral Non-Linearity (INL)
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
0.5 LSB
Differential Non-Linearity
(DNL)
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
0.25 LSB
Gain Error
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
2LSB
Offset Error
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
2LSB
Conversion Time Free Running Conversion 13 260 µs
Clock Frequency 50 1000 kHz
AV
CC
(1)
Analog Supply Voltage V
CC
- 0.3 V
CC
+ 0.3 V
V
REF
Reference Voltage 1.0 AV
CC
V
V
IN
Input Voltage GND V
REF
V
Input Bandwidth 38.5 kHz
V
INT
Internal Voltage Reference 1.0 1.1 1.2 V
R
REF
Reference Input Resistance 32 kΩ
R
AIN
Analog Input Resistance 100 MΩ

Atmel ATmega328 Specifications

General

Brand	Atmel
Model	ATmega328
Category	Microcontrollers
Language	English