Digital Logic and Design MCQs with Answers
Practice important Digital Logic and Design MCQs with answers and explanations.
Multiple Choice Questions
Q921: How can Offset Error be compensated in an A/D converter?
- A: By adjusting the output with respect to the offset
- B: By replacing faulty comparators
- C: By recalibrating the entire system
- D: By increasing the resolution
View Answer
A
Q922: Which type of D/A converter uses a resistor network with values R and 2R?
- A: Binary-Weighted-Input D/A Converter
- B: R/2R Ladder D/A Converter
- C: Successive-Approximation D/A Converter
- D: Flash D/A Converter
View Answer
B
Q923: What is the advantage of the R/2R Ladder D/A Converter over the Binary-Weighted-Input D/A Converter?
- A: It avoids using multiple weighted resistors
- B: It provides faster conversion
- C: It requires fewer bits for accurate conversion
- D: It is less expensive to manufacture
View Answer
A
Q924: What does the resolution of a D/A converter indicate?
- A: Number of bits converted
- B: Maximum output voltage
- C: Settling time of the converter
- D: Accuracy of the output voltage
View Answer
A
Q925: How is the accuracy of a D/A converter typically expressed?
- A: As a percentage of the full-scale output voltage
- B: As a percentage of the input voltage
- C: As a ratio of the input to output
- D: As a function of the settling time
View Answer
A
Q926: What is the ideal output characteristic of a monotonic D/A converter?
- A: Increasing analogue voltage with increasing input
- B: Constant voltage regardless of input change
- C: Decreasing analogue voltage with increasing input
- D: Non-linear output
View Answer
A
Q927: How is settling time defined for a D/A converter?
- A: Time taken to settle within ±1/2 least significant bit
- B: Time taken to reach the final value
- C: Time taken for the output to stabilize
- D: Time taken for the input to be converted
View Answer
A