Electronic Devices-Basic Op-Amp Circuits
Electronic Devices-Basic Op-Amp Circuits
1. A Schmitt trigger is
- a comparator with only one trigger point.
- a comparator with hysteresis.
- a comparator with three trigger points.
- none of the above.
2. The output of a Schmitt trigger is a
- pulse waveform.
- sawtooth waveform.
- sinusoidal waveform.
- triangle waveform.
3. A comparator with a Schmitt trigger has
- two trigger levels.
- a fast response.
- a slow response.
- one trigger level.
4. In a(n) ________, when the input voltage exceeds a specified reference voltage, the output changes state.
- integrator
- differentiator
- summing amplifier
- comparator
5. In a flash A/D converter, the priority encoder is used to
- select the first input.
- select the highest value input.
- select the lowest value input.
- select the last input.
6. What circuit produces an output that approximates the area under the curve of an input function?
- integrator
- differentiator
- summing amplifier
- comparator
7. A good example of hysteresis is a(n)
- AM radio.
- thermostat.
- alarm clock.
- none of the above
8. To reduce the effects of noise resulting in erratic switching of output states of a comparator, you can use
- the upper trigger point.
- the lower trigger point.
- nonzero-level detection.
- hysteresis.
9. What is (are) the necessary component(s) for the design of a bounded comparator?
- rectifier diodes
- zener diodes
- both of the above
10. What type(s) of circuit(s) use comparators?
- summer
- nonzero-level detector
- averaging amplifier
- summer and nonzero-level detector