A to D Converter – 1 MCQ’s

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This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “A to D Converter – 1″.

1. Find out the integrating type analog to digital converter?
a) Flash type converter
b) Tracking converter
c) Counter type converter
d) Dual slope ADC

2. Which type of ADC follow the conversion technique of changing the analog input signal to a linear function of frequency?
a) Direct type ADC
b) Integrating type ADC
c) Both integrating and direct type ADC
d) None of the mentioned

3. How many control lines are present in analog to digital converter in addition to reference voltage?
a) Three
b) Two
c) One
d) None of the mentioned

4. Which A/D converter is considered to be simplest, fastest and most expensive?
a) Servo converter
b) Counter type ADC
c) Flash type ADC
d) All of the mentioned

5. What is the advantage of using flash type A/D converter?
a) High speed conversion
b) Low speed conversion
c) Nominal speed conversion
d) None of the mentioned

6. Drawback of counter type A/D converter
a) Counter clears automatically
b) More complex
c) High conversion time
d) Low speed

7. The flash type A/D converters are called as
a) Parallel non-inverting A/D converter
b) Parallel counter A/D converter
c) Parallel inverting A/D converter
d) Parallel comparator A/D converter

8. The number of comparator required for flash type A/D converter
a) Triples for each added bit
b) Reduce by half for each added bit
c) Double for each added bit
d) Doubles exponentially for each added bit

9. Calculate the conversion time of a 12-bit counter type ADC with 1MHz clock frequent to convert a full scale input?
a) 4.095 µs
b) 4.095ms
c) 4.095s
d) None of the mentioned

10. At what condition error occurs in the servo tracking A/D Converter?
a) Slow change input
b) Rapid change in input
c) No change in input
d) All of the mentioned

11. In a servo tracking A/D converter, the input voltage is greater than the DAC output signal at this condition
a) The counter count up
b) The counter count down
c) The counter back and forth
d) None of the mentioned

12. How many clock pulses do a successive approximation converter requires for obtaining a digital output.
a) Twelve
b) Six
c) Eight
d) None of the mentioned

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