_____________________________________________________________________ Special Amplifiers
Figure 7-5. Input Signals 90o Out of Phase
7-29. As you have seen, this amplifier amplifies the difference between two input
signals. However, this is not a differential amplifier. A differential amplifier has two inputs
and two outputs. The circuit you have just been shown has only one output. We will now
look at a typical differential amplifier.
23 June 2005
TC 9-62
7-9
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