ADC Characteristics
(6)
T
A
= -40°C to 150°C, V
CC
= 4.5V to 5.5V (unless otherwise noted)
Symbol
Parameter
Resolution
Absolute accuracy
(Including INL, DNL,
quantization error, gain
and offset error)
Integral Non-Linearity
(INL)
Differential Non-Linearity
(DNL)
Gain Error
Offset Error
Conversion Time
Clock Frequency
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
Noise Reduction Mode
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
Free Running
Conversion
13 cycles
50
V
CC
- 0.3
1.0
GND
38.5
1.0
25.6
1.1
32
100
1.2
38.4
200
V
CC
+ 0.3
-3.5
Condition
Min
Typ
10
2
3.5
Max
Units
Bits
LSB
2
3.5
LSB
0.6
0.30
-1.3
1.8
2.5
1.0
3.5
3.5
LSB
LSB
LSB
LSB
µs
kHz
V
V
V
kHz
V
kΩ
MΩ
AV
CC
V
REF
V
IN
Analog Supply Voltage
Reference Voltage
Input Voltage
Input Bandwidth
AV
CC
V
REF
V
INT
R
REF
R
AIN
Notes:
Internal Voltage
Reference
Reference Input
Resistance
Analog Input Resistance
1. “Max” means the highest value where the pin is guaranteed to be read as low
2. “Min” means the lowest value where the pin is guaranteed to be read as high
3. Although each I/O port can sink more than the test conditions (20mA at V
CC
= 5V) under steady state conditions (non-tran-
sient), the following must be observed:
1] The sum of all IOL, for all ports, should not exceed 400 mA.
2] The sum of all IOL, for ports C0 - C5, should not exceed 200 mA.
3] The sum of all IOL, for ports C6, D0 - D4, should not exceed 300 mA.
4] The sum of all IOL, for ports B0 - B7, D5 - D7, should not exceed 300 mA.
If IOL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater
than the listed test condition.
4. Although each I/O port can source more than the test conditions (20mA at Vcc = 5V) under steady state conditions (non-
transient), the following must be observed:
1] The sum of all IOH, for all ports, should not exceed 400 mA.
2] The sum of all IOH, for ports C0 - C5, should not exceed 200 mA.
3] The sum of all IOH, for ports C6, D0 - D4, should not exceed 300 mA.
4] The sum of all IOH, for ports B0 - B7, D5 - D7, should not exceed 300 mA.
If IOH exceeds the test condition, VOH may exceed the related specification. Pins are not guaranteed to source current
greater than the listed test condition.
4
ATMega88/168 Automotive
7607F–AVR–03/08
ATMEL [ ATMEL CORPORATION ]
