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The full-scale output of a digital to analog converter is 20 mA. If the resolution is 80µA, then the minimum number of bits required and percentage resolution are:
- a)8
- b)7
- c)3.9
- d)0.39
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
The full-scale output of a digital to analog converter is 20 mA. If th...
To determine the resolution of a digital-to-analog converter (DAC), we need to know the number of bits used in the DAC.
Resolution can be calculated using the formula:
Resolution = (Full-scale output) / (2^Number of bits)
Given that the full-scale output is 20 mA, and the resolution is 80, we can rearrange the formula to solve for the number of bits:
Number of bits = log2(Full-scale output / Resolution)
Substituting the values, we get:
Number of bits = log2(20 mA / 80)
Number of bits = log2(0.25)
Number of bits = -2
However, the number of bits cannot be negative, so this calculation does not make sense. Please double-check the given values or provide additional information to accurately determine the number of bits used in the DAC.
Resolution can be calculated using the formula:
Resolution = (Full-scale output) / (2^Number of bits)
Given that the full-scale output is 20 mA, and the resolution is 80, we can rearrange the formula to solve for the number of bits:
Number of bits = log2(Full-scale output / Resolution)
Substituting the values, we get:
Number of bits = log2(20 mA / 80)
Number of bits = log2(0.25)
Number of bits = -2
However, the number of bits cannot be negative, so this calculation does not make sense. Please double-check the given values or provide additional information to accurately determine the number of bits used in the DAC.
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Community Answer
The full-scale output of a digital to analog converter is 20 mA. If th...
Concept:
The resolution for n bit DAC is given by:
The % resolution for n bit DAC is given by:
Calculation:
n = 8
% R = 0.39
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The full-scale output of a digital to analog converter is 20 mA. If the resolution is 80µA, then the minimum number of bits required and percentage resolution are:a)8b)7c)3.9d)0.39Correct answer is option 'D'. Can you explain this answer?
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