The key advantage of the successive approximation analog-to-digital converter (A

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Home ‣ Electronics ‣ Analog and Digital Converters Comments

Question
The key advantage of the successive approximation analog-to-digital converter (ADC) is its conversion speed.
Options
A. True
B. False

Correct Answer

True

Analog and Digital Converters problems

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1. Incorrect codes are a form of output error for a digital-to-analog converter (DAC).
Options
A. True
B. False

Discuss

Correct Answer: False

2. The bits of a number that tell how large the number is are called ____________________.
Options
A. carry bits
B. magnitude bits
C. sign bits
D. most significant bits

Discuss

Correct Answer: magnitude bits

3. The 1's complement of 101010₂ is _________.
Options
A. 010110₂
B. 010101₂
C. 110111₂
D. 101011₂

Discuss

Correct Answer: 010101₂

4. One advantage of using the 2's complement system to represent signed numbers is that you ___________.
Options
A. can perform subtraction by performing addition
B. can perform addition by performing subtraction
C. can perform division through repeated subtraction
D. none of the above

Discuss

Correct Answer: can perform subtraction by performing addition

5. Two 4-bit adders could be cascaded to form a(n) ___________.
Options
A. 16-bit parallel-adder circuit
B. 8-bit parallel-adder circuit
C. full-adder circuit
D. arithmetic-logic unit

Discuss

Correct Answer: 8-bit parallel-adder circuit

6. In a binary-weighted digital-to-analog converter (DAC), the values of the input resistors are chosen to be proportional to the binary weights of the corresponding input bits.
Options
A. True
B. False

Discuss

Correct Answer: False

7. A sample-and-hold circuit samples an analog value and holds it long enough for the analog-to-digital conversion to occur.
Options
A. True
B. False

Discuss

Correct Answer: True

8. The relative accuracy of a digital-to-analog converter (DAC) is determined by settling time.
Options
A. True
B. False

Discuss

Correct Answer: False

9. One way to determine the resolution of a digital-to-analog converter (DAC) is to compare the ratio of one step voltage to the maximum output voltage.
Options
A. True
B. False

Discuss

Correct Answer: True

10. The flash method of analog-to-digital conversion (ADC) uses comparators that compare reference voltages with the analog input voltage.
Options
A. True
B. False

Discuss

Correct Answer: True

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The key advantage of the successive approximation analog-to-digital converter (ADC) is its conversion speed.

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