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Op Amps While Optimizing Circuit
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1 Audio Amplifiers 2 Buffer Amplifiers/Driving Cap Loads 3 ...
www.analog.comA basic circuit operating on this principle is shown in Figure 6-3. In order to select an optimum transformer turns ratio for a given source resistance (Rs), calculate the characteristic Rn of the op amp in use. Figure 6-3: Transformer input mic preamplifier with 28 to 50 dB gain Rn must first be calculated from the op amp’s en and in data as ...