MCQOPTIONS
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MCQOPTIONS
This section includes 59 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Electronics knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
An offset error in a DAC will show up as an incorrect analog output ________. |
| A. | only for higher value inputs |
| B. | only for lower value inputs |
| C. | only for certain (scattered) inputs |
| D. | for all inputs |
| Answer» E. | |
| 52. |
What is the result of taking more samples during the quantization process? |
| A. | More errors in the analog-to-digital conversion |
| B. | More bit requirements |
| C. | More accurate signal representation |
| D. | More bit requirements and more accurate signal representation |
| Answer» E. | |
| 53. |
An op-amp has very ________. |
| A. | high voltage gain |
| B. | high input impedance |
| C. | low output impedance |
| D. | all of the above |
| Answer» E. | |
| 54. |
The dual-slope analog-to-digital converter finds extensive use in ________. |
| A. | digital voltmeters |
| B. | function generators |
| C. | frequency counters |
| D. | all of the above |
| Answer» E. | |
| 55. |
Which type of ADC quantizes the analog signal into a stream of bits whose amount corresponds to the signal level? |
| A. | Successive approximation |
| B. | Sigma-delta |
| C. | Dual-slope |
| D. | None of the above |
| Answer» C. Dual-slope | |
| 56. |
Which term applies to the maintaining of a given signal level until the next sampling? |
| A. | Holding |
| B. | Aliasing |
| C. | Shannon frequency sampling |
| D. | "Stair-stepping" |
| Answer» B. Aliasing | |
| 57. |
Digital signal processors must be programmed to perform specific tasks. |
| A. | 1 |
| B. | |
| C. | 1 |
| D. | |
| Answer» B. | |
| 58. |
The ADC0804 is an example of a ________. |
| A. | single-slope analog-to-digital converter |
| B. | dual-slope analog-to-digital converter |
| C. | digital-ramp analog-to-digital converter |
| D. | successive-approximation analog-to-digital converter |
| Answer» E. | |
| 59. |
In a flash analog-to-digital converter, the output of each comparator is connected to an input of a ________. |
| A. | decoder |
| B. | priority encoder |
| C. | multiplexer |
| D. | demultiplexer |
| Answer» C. multiplexer | |