41. A(n) ________ amplifier is used if the application requires a high sensitivity to low-level signals and protection from high-voltage associated circuits.
(a) basic instrumentation
(b) operational transconductance
(c) log/antilog amplifier
(d) isolation
42. The basic instrumentation amplifier has ________ input(s).
(a) 1
(b) 2
(c) capacitive
(d) resistive
43. The precision rectifier circuit is designed to _________.
(a) rectify waveforms with very large voltage swings
(b) rectify waveforms with very small voltage swings
(c) rectify precision waveforms
(d) amplify and rectify waveforms
44. An instrumentation amplifier has a high
(a) output impedance
(b) power gain
(c) CMRR
(d) supply voltage
45. In the classic three-op-amp instrumentation amplifier, the differential voltage gain is usually produced by the
(a) first stage
(b) second stage
(c) mismatched resistors
(d) output op-amp
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