Comparators and Schmitt Triggers Quiz

The output of a Schmitt trigger is a

• pulse waveform.

• sawtooth waveform.

• sinusoidal waveform.

• triangle waveform.

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.

A good example of hysteresis is a(n)

• AM radio.

• thermostat.

• alarm clock.

• walkie talkie

A comparator with hysteresis is sometimes known as a(n)

• integrator.

• differentiator.

• Schmitt trigger.

• window detector

What is (are) the necessary component(s) for the design of a bounded comparator?

• rectifier diodes

• zener diodes

• Schottky diode

• BiFET

What type(s) of circuit(s) use comparators?

• summer

• nonzero-level detector

• averaging amplifier

• summer and nonzero-level detector

Refer to the figure below. Determine the lower trigger point.

• +V(out)max

• -V(out)max

• -2.47 V

• +2.47 V

Refer to the figure below. Determine the upper trigger point.

• +V(out)max

• -V(out)max

• -2.47 V

• +2.47 V

In a zero-level detector, the output changes state when the input

• is positive

• is negative

• crosses zero

• has a zero rate of change

Noise on the input of a comparator can cause the output to

• hang up in one state

• go to zero

• change back and forth erratically between two states

• produce the amplified noise signal