第十章测试1.Under difference-mode operation, the difference-mode voltage gain for this circuit is （ ）.
A:0.0397 B:0.08 C:40 D:80
答案:C
2.The operational amplifier will only slightly amplify signals （ ）.
A:when the supply voltages are more then ±25 V B:when the supply voltages are less then ±5 V C:that are different on both the inputs D:that are common on both the inputs 3.The inverting and noninverting inputs to an op-amp are used to drive a(n) （ ） amplifier.
A:inverting B:open-loop C:differential D:noninverting 4.When a given op-amp has a common-mode input of 10 V, the output of the device is 10 V. When the device has a differential input of 2 mV, the output of the device is 10 V. What is the CMPR of the device? （ ）
A:1000 : 1 B:5,000,000 : 1 C:5000 : 1 D:5 : 1 5.The bandwidth of an amplifier is （ ）.
A:the range of frequencies between the lower and upper 3 dB frequencies B:the range of frequencies over which gain remains relatively constant C: the range of frequencies found using
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