Special Purpose Op Amp Circuits – Exercise – 1

36. A Schmitt trigger is a comparator with _______.

(a) modulation
(b) a closed-loop gain less than one
(c) hysteresis
(d) a high threshold value

Answer
Answer : (c)
Explanation
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37. A Schmitt trigger has _________.

(a) no trigger points
(b) one trigger point
(c) two trigger points
(d) three trigger points

Answer
Answer : (d)
Explanation
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38. Circuits that shift the dc level of a signal are called

(a) limiters
(b) clampers
(c) peak detectors
(d) dc converters

Answer
Answer : (b)
Explanation
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39. Nota

40. This circuit is a setup for

(a) an antilog amplifier
(b) a constant-current source
(c) an instrumentation amplifier
(d) an isolation amplifier

Answer
Answer : (d)
Explanation
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