ATAVRMC321 Atmel, ATAVRMC321 Datasheet - Page 153
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ATAVRMC321
Manufacturer Part Number
ATAVRMC321
Description
KIT EVAL MOTOR CTRL LOW COST
Manufacturer
Atmel
Series
AVR®r
Specifications of ATAVRMC321
Main Purpose
Power Management, Motor Control
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
ATtinyx61
Primary Attributes
3-Ph BLDC, Brushed DC, Stepper Motor- Controller Board
Secondary Attributes
Includes ATAVRMC300 Power Driver Board
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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15.11 ADC Conversion Result
15.11.1
2588E–AVR–08/10
Single Ended Conversion
Figure 15-12. Differential Non-linearity (DNL)
After the conversion is complete (ADIF is high), the conversion result can be found in the ADC
Result Registers (ADCL, ADCH). The form of the conversion result depends on the type of the
conversio as there are three types of conversions: single ended conversion, unipolar differential
conversion and bipolar differential conversion.
For single ended conversion, the result is
where V
Table 15-3 on page 155
• Differential Non-linearity (DNL): The maximum deviation of the actual code width (the interval
• Quantization Error: Due to the quantization of the input voltage into a finite number of codes,
• Absolute Accuracy: The maximum deviation of an actual (unadjusted) transition compared to
between two adjacent transitions) from the ideal code width (1 LSB). Ideal value: 0 LSB.
a range of input voltages (1 LSB wide) will code to the same value. Always ± 0.5 LSB.
an ideal transition for any code. This is the compound effect of offset, gain error, differential
error, non-linearity, and quantization error. Ideal value: ± 0.5 LSB.
Output Code
IN
is the voltage on the selected input pin and V
0x000
0x3FF
0
and
1 LSB
Table 15-4 on page
ADC
=
V
--------------------------
IN
V
⋅
REF
1024
157). 0x000 represents analog ground, and
REF
the selected voltage reference (see
V
REF
Input Voltage
153
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