Digital Electronics - Interfacing to the Analog World

Exercise : Interfacing to the Analog World - General Questions
36.

What function is performed by the block labeled X in the given figure?

Analog-to-digital conversion
Digital-to-analog conversion
Audio ON/OFF control
Power supply for the audio amplifier
Answer: Option
Explanation:
No answer description is available. Let's discuss.

37.
Inaccurate A/D conversion may be due to:
constant analog input voltage
linear ramp usage
intermittent counter inputs
faulty sample-and-hold circuitry
Answer: Option
Explanation:
No answer description is available. Let's discuss.

38.
What is the resolution, in percent, of a 12-bit DAC?
8.33
0.049
0.000488
0.083
Answer: Option
Explanation:
No answer description is available. Let's discuss.

39.
What circuitry is on an ADC0808 IC?
A multiplexer
An ADC
A 3-bit select input code
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

40.
What is the maximum conversion time for an 8-bit successive-approximation ADC with a clock frequency of 20 kHz?
12.8 ms
6.4 ms
0.05 ms
0.4 ms
Answer: Option
Explanation:
No answer description is available. Let's discuss.