Electronic Devices and Circuit Theory-Linear-Digital ICs
Electronic Devices and Circuit Theory-Linear-Digital ICs
1. What is the level of the output voltage of a ladder-network conversion?
- The analog output voltage proportional to the digital input voltage
- The digital output voltage proportional to the linear input voltage
- A fixed digital value Vref
- A fixed analog value Vref
2. Which of the following is not a linear/digital IC?
- Phase-locked loop
- Voltage-controlled oscillator
- Passive filter
- Comparator
3. Which of the following is not a linear/digital IC?
- Phase-locked loop
- Voltage-controlled oscillator
- Passive filter
- Comparator
4. Which of the following is not a linear/digital IC?
- Phase-locked loop
- Voltage-controlled oscillator
- Passive filter
- Comparator
5. A 339 IC is an example of a fourteen-pin DIP that can be made to function as a ________.
- comparator
- 555 timer
- D to A converter
- ladder network
6. What is the minimum number of conversions per second of a clock rate of 1 MHz operating a 10-stage counter in an ADC?
- 1000
- 976
- 769
- 697
7. Which of the following is (are) the results of improvements built into a comparator IC?
- Faster switching between the two output levels
- Noise immunity
- Outputs capable of directly driving a variety of loads
- All of the above
8. What is the first phase of the dual-slope method of conversion?
- Connecting the analog voltage to the integrator for a fixed time
- Setting the counter to zero
- Connecting the integrator to a reference voltage
- All of the above
9. What is the maximum conversion time of a clock rate of 1 MHz operating a 10-stage counter in an ADC?
- 1.024 s
- 102.3 ms
- 10.24 ms
- 1.024 ms
10. On which of the following does the conversion depend in ladder-network conversion?
- Comparator
- Control logic
- Digital counter
- Clock