31. Which of the following devices is (are) a component of a digital-to-analog converter (DAC)?
(a) Integrator
(b) Comparator
(c) Digital counter
(d) All of the above
32. What is (are) the input(s) to the comparator in the ladder-network conversion of an ADC?
(a) Staircase voltage
(b) Analog input voltage
(c) Both staircase and analog input voltage
(d) None of the above
33. At which of the following period(s) is the counter advanced (incremented) in dual-slope conversion?
(a) During the charging of the capacitor of the integrator
(b) During the discharging of the capacitor of the integrator
(c) During both the charging and discharging of the capacitor of the integrator
(d) None of the above
34. The frequency of the 566 VCO is set by ________.
(a) an external resistor
(b) an external capacitor
(c) both an external resistor and an external capacitor
(d) None of the above
35. In astable operation of the 555 timer, the lower and upper peaks of the charging/discharging external capacitor are ________ to ________.
(a) –VCC, VCC
(b) –0.5 VCC, 0.5 VCC
(c) 1/3 VCC, 1/2 VCC
(d) 1/3 VCC, 2/3 VCC
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