Transcription of 25 - Talking Electronics
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25 - Talking Electronics
662 Principles of ElectronicsINTRODUCTIONH istorically, an operational amplifier (OP-Amp) was designed to perform suchmathematical operations as addition,subtraction, integration and differentiation. Hence,the name operational amplifier. An operationalamplifier is a multistage amplifier and consists of adifferential amplifier stage, a high-gain CE amplifierstage and class B push-pull emitter follower. Anoperational amplifier (OP-Amp) is an *integratedcircuit and is widely used in computers, as video andaudio amplifiers in communication of their multi-purpose use, OP-Amps are*All the components of an OP-Amp ( , transistors,resistors etc.)
666 Principles of Electronics emitter signal becomes input to Q2.Therefore, Q2 functions as a *common base amplifier. As a result, the signal on the emitter of Q2 will be amplified and appears on output 2 (i.e., collector of Q2) in phase
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