
374
7682C–AUTO–04/08
AT90CAN32/64/128
27.8
Notes:
1. All DC Characteristics contained in this datasheet are based on simulation and characterization of other AVR microcontrol-
lers manufactured in the same process technology. These values are preliminary values representing design targets, and
will be updated after characterization of actual silicon.
2. Values are guidelines only.
3. Minimum for AVCC is 2.7 V.
4. Maximum for AVCC is 5.5 V
Table 27-5.
ADC Characteristics, Single Ended Channels
Symbol
Parameter
Condition
Units
Resolution
Single Ended Conversion
10
Bits
Absolute accuracy
(Included INL, DNL,
Quantization Error, Gain and
Offset Error)
Single Ended Conversion
VREF = 4V, Vcc = 4V
ADC clock = 200 kHz
1.5
3
LSB
Single Ended Conversion
VREF = 4V, Vcc = 4V
3
LSB
Single Ended Conversion
VREF = 4V, Vcc = 4V
ADC clock = 200 kHz
Noise Reduction Mode
1.5
3
LSB
Single Ended Conversion
VREF = 4V, Vcc = 4V
Noise Reduction Mode
3
LSB
Integral Non-linearity (INL)
Single Ended Conversion
VREF = 4V, Vcc = 4V
ADC clock = 200 kHz
0.6
1.5
LSB
Differential Non-linearity (DNL)
Single Ended Conversion
VREF = 4V, Vcc = 4V
ADC clock = 200 kHz
0.3
1.5
LSB
Gain Error
Single Ended Conversion
VREF = 4V, Vcc = 4V
ADC clock = 200 kHz
– 3
0
+ 3
LSB
Offset Error
Single Ended Conversion
VREF = 4V, Vcc = 4V
ADC clock = 200 kHz
– 2.5
1
+ 2.5
LSB
Clock Frequency
Free Running Conversion
50
1000
kHz
Conversion Time
Free Running Conversion
65
260
s
AVCC
Analog Supply Voltage
VCC – 0.3
VCC + 0.3
V
VREF
External Reference Voltage
2.0
AVCC
V
VIN
Input voltage
GND
VREF
V
Input bandwidth
38.5
kHz
VINT
Internal Voltage Reference
2.4
2.56
2.7
V
RREF
Reference Input Resistance
24
32
40
k
RAIN
Analog Input Resistance
100
M