ATMEGA328P-20AU Datasheet, PDF (319/420 Pages) ATMEL Corporation – 8-bit Atmel Microcontroller with 4/8/16K Bytes In-System Programmable Flash

ATmega48P/88P/168P
29.8 ADC Characteristics – Preliminary Data
Table 29-7. ADC Characteristics
Symbol Parameter
Condition
Resolution
V_REF = 4V, V_CC = 4V,
ADC clock = 200 kHz
Absolute accuracy (Including
INL, DNL, quantization error,
gain and offset error)
V_REF = 4V, V_CC = 4V,
ADC clock = 1 MHz
V_REF = 4V, V_CC = 4V,
ADC clock = 200 kHz
Noise Reduction Mode
V_REF = 4V, V_CC = 4V,
ADC clock = 1 MHz
Noise Reduction Mode
Integral Non-Linearity (INL)
V_REF = 4V, V_CC = 4V,
ADC clock = 200 kHz
Differential Non-Linearity
(DNL)
V_REF = 4V, V_CC = 4V,
ADC clock = 200 kHz
Gain Error
V_REF = 4V, V_CC = 4V,
ADC clock = 200 kHz
Offset Error
V_REF = 4V, V_CC = 4V,
ADC clock = 200 kHz
Conversion Time
Free Running Conversion
AV_CC(1)
V_REF
V_IN
Clock Frequency
Analog Supply Voltage
Reference Voltage
Input Voltage
Input Bandwidth
V_INT
Internal Voltage Reference
R_REF Reference Input Resistance
R_AIN Analog Input Resistance
Note: 1. AV_CC absolute min/max: 1.8V/5.5V
Min
13
50
V_CC - 0.3
1.0
GND
1.0
Typ
10
2
4.5
2
4.5
0.5
0.25
2
2
38.5
1.1
32
100
Max
Units
Bits
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
260
µs
1000
kHz
V_CC + 0.3
V
AV_CC
V
V_REF
V
kHz
1.2
V
kΩ
MΩ
8025M–AVR–6/11
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