Datasheet

133
ATmega323(L)
1457E11/01
Notes: 1. Values are guidelines only. Actual values are TBD.
2. Minimum for AV
CC
is 2.7V.
3. Maximum for AV
CC
is 5.5V.
ADC Characteristics Preliminary Data
(1)
Symbol Parameter Condition Min
(2)
Typ Max
(3)
Units
Resolution
Single-ended
Conversion
10 Bits
Absolute
accuracy
V
REF
= 4V
ADC clock = 200 kHz
12LSB
Absolute
accuracy
V
REF
= 4V
ADC clock = 1 MHz
4LSB
Absolute
accuracy
V
REF
= 4V
ADC clock = 2 MHz
16 LSB
Integral
Non-linearity
V
REF
> 2V 0.5 LSB
Differential
Non-linearity
V
REF
> 2V 0.5 LSB
Zero Error
(Offset)
V
REF
> 2V 1 LSB
Conversion
Time
Free Running
Conversion
65 260 µs
Clock
Frequency
50 200 kHz
AV
CC
Analog
Supply
Voltage
V
CC
- 0.3
(2)
V
CC
+ 0.3
(3)
V
V
REF
Reference
Voltage
2 V AV
CC
V
VINT
Internal
Voltage
Reference
2.35 2.56 2.77 V
V
BG
Bandgap
Voltage
Reference
1.12 1.22 1.32 V
R
REF
Reference
Input
Resistance
61013k
V
IN
Input
Voltage
AGND AREF V
R
AIN
Analog Input
Resistance
100 M