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| MEGA128CAN Datasheet, PDF (364/413 Pages) ATMEL Corporation – Microcontroller WITH 128K BYTES OF ISP FLASH AND CAN CONTROLLER | |||
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Table 141. ADC Characteristics, Differential Channels
Symbol Parameter
Condition
Resolution
Differential Conversion
Gain = 1x or 10x
Differential Conversion
Gain = 200x
Absolute accuracy
Gain = 1x , 10x or 200x
VREF = 4V, Vcc = 5V
ADC clock = 50 - 200 kHz
Integral Non-linearity (INL)
(Accuracy after Calibration
for Offset and Gain Error)
Gain = 1x , 10x or 200x
VREF = 4V, Vcc = 5V
ADC clock = 50 - 200 kHz
Gain Error
Gain = 1x , 10x or 200x
Offset Error
Gain = 1x , 10x or 200x
VREF = 4V, Vcc = 5V
ADC clock = 50 - 200 kHz
Clock Frequency
Free Running Conversion
Conversion Time
Free Running Conversion
AVCC
VREF
VIN
VDIFF
Analog Supply Voltage
External Reference Voltage
Input voltage
Input Differential Voltage
ADC Convertion Output
Differential Conversion
Differential Conversion
Input bandwidth
Differential Conversion
VINT
Internal Voltage Reference
RREF Reference Input Resistance
RAIN
Analog Input Resistance
Note: 1. Values are guidelines only.
2. Minimum for AVCC is 2.7 V.
3. Maximum for AVCC is 5.5 V
Min(1)
â2
â1
50
65
VCC â 0.3 (2)
2.0
0
âVREF/Gain
â511
2.4
Typ(1)
8
7
1
0.5
0
0
4
2.56
32
100
Max(1)
Units
Bits
Bits
LSB
1
+2
+1
200
260
VCC + 0.3 (3)
AVCC - 0.5
AVCC
+VREF/Gain
511
2.7
LSB
LSB
LSB
kHz
µs
V
V
V
V
LSB
kHz
V
kâ¦
Mâ¦
364 AT90CAN128
4250EâCANâ12/04
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