_____________________________________________________________________ Special Amplifiers
OPERATIONAL AMPLIFIER - an amplifier that has very high gain, very high
input impedance, and very low output impedance. An operational amplifier is
made from three stages:
Differential amplifier.
High-gain voltage amplifier.
Output amplifier.
This means that degenerative feedback is used to lower the gain and increase
the stability of the operational amplifier.
INVERTING CONFIGURATION a way an operational amplifier circuit can be
connected.
NONINVERTING CONFIGURATION a way an operational amplifier circuit
can be connected.
23 June 2005
TC 9-62
7-51
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