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