Operational Amplifiers - Learn About Electronics

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of the differential amplifier makes the rejection of common mode signals very efficient. Notice that in the circuit shown in Fig. 6.1.3 only a single output from Tr2 collector is used to produce a single amplified voltage that is proportional to the difference between inputs a and b, and is almost entirely unaffected by changes common to a and b.

  Dome, Single, Differences, Voltage, Amplifier