Datasheet

Symbol Parameter Condition Min Typ Max Units
Offset Error Single Ended Conversion
V
REF
= 4V, V
CC
= 4V
ADC clock = 200kHz
0.75 LSB
Clock Frequency 50 1000 kHz
Conversion Time Free Running Conversion 13 260 μs
AV
CC
Analog Supply Voltage V
CC
-
0.3
(1)
V
CC
+
0.3
(2)
V
V
REF
Reference Voltage 2.0 AV
CC
V
V
IN
Input voltage GND V
REF
V
Input bandwidth 38.5 kHz
V
INT
Internal Voltage Reference 2.4 2.56 2.8 V
R
REF
Reference Input Resistance 32 kΩ
R
AIN
Analog Input Resistance 100 MΩ
Note:
1. Minimum for AV
CC
is 2.7V.
2. Maximum for AV
CC
is 5.5V.
Table 32-10 ADC Characteristics, Differential Channels
Symbol Parameter Condition Min
(1)
Typ
(1)
Max
(1)
Units
Resolution
Gain = 1x 10 Bits
Gain = 10x 10 Bits
Gain = 200x 10 Bits
Absolute accuracy
Gain = 1x
V
REF
= 4V, V
CC
= 5V ADC clock = 50 -
200kHz
16 LSB
Gain = 10xV
REF
= 4V, V
CC
= 5V ADC
clock = 50 - 200kHz
16 LSB
Gain = 200xV
REF
= 4V, V
CC
= 5V ADC
clock = 50 - 200kHz
8 LSB
Integral Non-linearity
(INL)
(Accuracy after
Calibration for Offset and
Gain Error)
Gain = 1x
V
REF
= 4V, V
CC
= 5V ADC clock = 50 -
200kHz
0.75 LSB
Gain = 10x V
REF
= 4V, V
CC
= 5V ADC
clock = 50 - 200kHz
0.75 LSB
Gain = 200x V
REF
= 4V, V
CC
= 5V
ADC clock = 50 - 200kHz
2.5 LSB
Atmel ATmega64A [DATASHEET]
Atmel-8160E-ATmega64A_Datasheet_Complete-09/2015
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