Analog to Digital Converters (ADC) and Digital to Analog Converters (DAC) MCQs

Analog to Digital Converters (ADC) and Digital to Analog Converters (DAC) MCQs | TechSpark AI

1. Which of the following is a type of Analog-to-Digital Converter (ADC)?

   A) Flash ADC
   B) Digital ramp ADC
   C) Successive approximation ADC
   D) All of the above

2. The resolution of a DAC is determined by:

   A) The number of bits
   B) The reference voltage
   C) The clock frequency
   D) The output current

3. A flash ADC is known for its:

   A) Low power consumption
   B) Simplicity
   C) High speed
   D) High resolution

4. Which component is used to convert a digital signal back into an analog signal?

   A) ADC
   B) DAC
   C) Multiplexer
   D) Flip-flop

5. In a digital system, the sampling rate of the ADC must be at least:

   A) Equal to the Nyquist rate
   B) Less than the Nyquist rate
   C) Greater than the Nyquist rate
   D) Double the Nyquist rate

6. Which of the following factors primarily affects the accuracy of an ADC?

A) The clock speed

B) The resolution

C) The sampling rate

D) The power supply voltage

7. The main advantage of a Successive Approximation Register (SAR) ADC is:

A) High resolution

B) Fast conversion time

C) Low power consumption

D) Low cost

8. What is the primary function of a Digital-to-Analog Converter (DAC)?

A) Convert analog signals into digital

B) Convert digital signals into analog

C) Store digital data

D) Amplify analog signals

9. In an 8-bit DAC, the output voltage is directly proportional to:

A) The clock frequency

B) The input binary code

C) The power supply voltage

D) The current through the DAC

10. The sampling theorem states that to accurately reconstruct a signal, the sampling rate should be:

A) Equal to the signal frequency

B) Half of the signal frequency

C) Twice the signal frequency

D) Less than the signal frequency

Analog to Digital Converters (ADC) and Digital to Analog Converters (DAC) MCQs | TechSpark AI