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Analog and Digital Converters
What is the major advantage of the R/2R ladder digital-to-analog (DAC), as compared to a binary-weighted digital-to-analog DAC converter?
It only uses two different resistor values.
It has fewer parts for the same number of inputs.
Its operation is much easier to analyze.
The virtual ground is eliminated and the circuit is therefore easier to understand and troubleshoot.
Correct Answer:
It only uses two different resistor values.
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Analog and Digital Converters
Which is not an analog-to-digital (ADC) conversion error?
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Incorrect codes are a form of output error for a digital-to-analog converter (DAC).
The key advantage of the successive approximation analog-to-digital converter (ADC) is its conversion speed.
In a binary-weighted digital-to-analog converter (DAC), the values of the input resistors are chosen to be proportional to the binary weights of the corresponding input bits.
A sample-and-hold circuit samples an analog value and holds it long enough for the analog-to-digital conversion to occur.
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The flash method of analog-to-digital conversion (ADC) uses comparators that compare reference voltages with the analog input voltage.
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