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- Question
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
- Correct Answer
- a large number of comparators is required to represent a reasonable sized binary number
- 1. The resolution of a 0?5 V 6-bit digital-to-analog converter (DAC) is:
Options- A. 63%
- B. 64%
- C. 1.56%
- D. 15.6% Discuss
- 2. How many basic binary subtraction combinations are possible?
Options- A. 4
- B. 3
- C. 2
- D. 1 Discuss
- 3. How many basic binary subtraction operations are possible?
Options- A. 4
- B. 3
- C. 2
- D. 1 Discuss
- 4. The range of an 8-bit two's complement word is from:
Options- A. +12810 to ?12810
- B. ?12810 to +12710
- C. +12810 to ?12710
- D. +12710 to ?12710 Discuss
- 5. When multiplying in binary the decimal values 13 × 11, what is the third partial product?
Options- A. 100000
- B. 100001
- C. 0000
- D. 1011 Discuss
- 6. 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 Discuss
- 7. A binary-weighted digital-to-analog converter has a feedback resistor, Rf, 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 Discuss
- 8. 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 Discuss
- 9. A 4-bit R/2R digital-to-analog (DAC) converter has a reference of 5 volts. What is the analog output for the input code 0101.
Options- A. 0.3125 V
- B. 3.125 V
- C. 0.78125 V
- D. ?3.125 V Discuss
- 10. The practical use of binary-weighted digital-to-analog converters is limited to:
Options- A. R/2R ladder D/A converters
- B. 4-bit D/A converters
- C. 8-bit D/A converters
- D. op-amp comparators Discuss
Analog and Digital Converters problems
Search Results
Correct Answer: 1.56%
Correct Answer: 4
Correct Answer: 1
Correct Answer: ?12810 to +12710
Correct Answer: 100000
Correct Answer: nonmonotonic and offset error
Correct Answer: ?0.6 V
Correct Answer: 50 µA
Correct Answer: 3.125 V
Correct Answer: 4-bit D/A converters
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