11. What circuit produces an output that approximates the area under the curve of an input function?
(a) integrator
(b) differentiator
(c) summing amplifier
(d) comparator
12. Which of the following are variations of the basic summing amplifier?
(a) averaging amplifier
(b) scaling amplifier
(c)
(d)
13. What is (are) the necessary component(s) for the design of a bounded comparator?
(a) rectifier diodes
(b) zener diodes
(c)
(d)
14. A comparator with hysteresis is sometimes known as a(n)
(a) integrator.
(b) differentiator.
(c) Schmitt trigger.
(d) none of the above
15. In a(n) ________, when the input voltage exceeds a specified reference voltage, the output changes state.
(a) integrator
(b) differentiator
(c) summing amplifier
(d) comparator
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