Special Purpose Op Amp Circuits » Exercise – 2
51. An instrumentation amplifier has extremely high ________, good ________, and high ________.
(a) input impedance, common-mode rejection, gain
(b) noise factor, grounding, power
(c) working voltages, current capacity, output impedance
(d) output gain, output loading, power
52. A voltage-to-current converter is used in applications where it’s necessary to have an output load current that is controlled by _________.
(a) input frequency
(b) output resistance
(c) input voltage
(d) input resistance
53. If an operational transconductance amplifier (OTA) is used as an amplitude modulator, the voltage gain is varied by applying a _________ voltage to the ______ input.
(a) demodulation, bias
(b) modulation, bias
(c) bias, modulation
(d) low-frequency, bias
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- 555555555544. An instrumentation amplifier has a high (a) output impedance (b) power gain (c) CMRR (d) supply voltage