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- Question
A digital voltmeter converts an analog voltage to its ________ representation.
Options- A. BCD-code
- B. decimal
- C. digital
- D. alias
- Correct Answer
- BCD-code
- 1. The AD7524, a CMOS IC available from several IC manufacturers, is an eight-bit D/A converter that uses a(n) ________.
Options- A. sample-and-hold circuit
- B. R/2R ladder network
- C. multiplexer
- D. 10 µs clock Discuss
- 2. The DSO ________, ________, and ________ analog waveforms.
Options- A. filters, conditions, sends
- B. levels, stores, weighs
- C. sends, receives, translates
- D. digitizes, stores, displays Discuss
- 3. The delay between a change on the digital input of a DAC and the appearance of the change on the output is called settling time.
Options- A. True
- B. False Discuss
- 4. Resolution in the analog output of a DAC is primarily dependent on the number of input binary bits.
Options- A. True
- B. False Discuss
- 5. The main advantage of the SAR ADC method is its high speed.
Options- A. True
- B. False Discuss
- 6. The figure given below represents a ________.
Options- A. successive-approximation A/D converter
- B. dual-slope A/D converter
- C. tracking A/D converter
- D. dual-approximation D/A comparator Discuss
- 7. A(n) ________ converts an analog input to a digital output.
Options- A. ADC
- B. DAC
- C. flash converter
- D. bipolar converter Discuss
- 8. For each bit that is added to a digital ramp ADC, the conversion time ________.
Options- A. doubles
- B. triples
- C. decreases by one-third
- D. decreases by one-half Discuss
- 9. A 4-bit stairstep-ramp A/D converter has a clock frequency of 100 kHz and a maximum input of 10 V, and has 6 V applied to the input. The conversion time will be ________.
Options- A. 10 microseconds
- B. 160 microseconds
- C. 90 microseconds
- D. 6250 seconds Discuss
- 10. The stability of the ADC process can be improved by using a(n) ________ to hold the analog voltage constant while the A/D conversion is taking place.
Options- A. sample-and-hold circuit
- B. op-amp comparator
- C. NPN amp
- D. current loop Discuss
Interfacing to the Analog World problems
Search Results
Correct Answer: R/2R ladder network
Correct Answer: sends, receives, translates
Correct Answer: True
Correct Answer: True
Correct Answer: True
Correct Answer: successive-approximation A/D converter
Correct Answer: ADC
Correct Answer: doubles
Correct Answer: 90 microseconds
Correct Answer: sample-and-hold circuit
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