1. The difference between analog voltage represented by two adjacent digital codes, or the analog step size, is the:
2. The primary disadvantage of the flash analog-to digital converter (ADC) is that:
3. A binary-weighted digital-to-analog converter has a feedback resistor, Rf, of 12 k. If 50 A of current is through the resistor, the voltage out of the circuit is:
4. What is the major advantage of the R/2R ladder digital-to-analog (DAC), as compared to a binary-weighted digital-to-analog DAC converter?
5. The resolution of a 0–5 V 6-bit digital-to-analog converter (DAC) is:
6. In a flash analog-to-digital converter, the output of each comparator is connected to an input of a:
7. Which is not an analog-to-digital (ADC) conversion error?
8. Sample-and-hold circuits in analog-to digital converters (ADCs) are designed to:
9. A sample-and-hold circuit samples an analog value and holds it long enough for the analog-to-digital conversion to occur.
10. Incorrect codes are a form of output error for a digital-to-analog converter (DAC).
11. If we double the number of bits in our digital representation of a number from 4 to 8 bits, we double the relative accuracy of the conversion from digital to analog.
12. The flash method of analog-to-digital conversion (ADC) uses comparators that compare reference voltages with the analog input voltage.
13. A digital-to-analog converter (DAC) is said to be nonmonotonic if the magnitude of the output voltage increases every time the input code increases.
14. The relative accuracy of a digital-to-analog converter (DAC) is determined by settling time.
15. The key advantage of the successive approximation analog-to-digital converter (ADC) is its conversion speed.
16. 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.
17. 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.
18. An 8-bit digital-to-analog converter (DAC) has a resolution of 0.125 V.
19. ________ analog-to-digital converters (ADCs) use no clock signal, because there is no timing or sequencing required.
20. ________ analog-to-digital converters (ADCs) have a fixed value of conversion time that is not dependent on the value of the analog input.
21. The problems of the binary-weighted resistor digital-to-analog converter (DAC) can be overcome by using ___________.
22. The number of binary bits at the input of a digital-to-analog converter (DAC) is known as ________.
23. The characteristic that a change of one binary step on the input of a digital-to-analog converter (DAC) should cause exactly one step change on the output is called ________.
24. Inaccurate analog-to-digital conversion may be due to ____________.
25. A binary-weighted resistor used in a digital-to-analog converter (DAC) is only practical up to a resolution of ________.