A binary-weighted digital-to-analog converter has a feedback resistor, Rf, of 12

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Question
A binary-weighted digital-to-analog converter has a feedback resistor, R_f, of 12 kΩ. If 50 µA of current is through the resistor, the voltage out of the circuit is:
Options
A. 0.6 V
B. ?0.6 V
C. 0.1 V
D. ?0.1 V

Correct Answer

?0.6 V

1. Which of the following is a type of error associated with digital-to-analog converters (DACs)?
Options
A. nonmonotonic error
B. incorrect output codes
C. offset error
D. nonmonotonic and offset error

2. The primary disadvantage of the flash analog-to digital converter (ADC) is that:
Options
A. it requires the input voltage to be applied to the inputs simultaneously
B. a long conversion time is required
C. a large number of output lines is required to simultaneously decode the input voltage
D. a large number of comparators is required to represent a reasonable sized binary number

6. A binary-weighted digital-to-analog converter has an input resistor of 100 kΩ. If the resistor is connected to a 5 V source, the current through the resistor is:
Options
A. 50 µA
B. 5 mA
C. 500 µA
D. 50 mA

10. What is the resolution of a digital-to-analog converter (DAC)?
Options
A. It is the comparison between the actual output of the converter and its expected output.
B. It is the deviation between the ideal straight-line output and the actual output of the converter.
C. It is the smallest analog output change that can occur as a result of an increment in the digital input.
D. It is its ability to resolve between forward and reverse steps when sequenced over its entire range.

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