AFS Series - Temperature Compensated Amplifiers

In any solid state amplifier, both the gain and the noise figure will vary as a function of temperature. The overall gain of an uncompensated amplifier tends to decrease as the base plate temperature increases, while the noise figure will exhibit the opposite effect and increase as the temperature rises. The amount of change in gain is directly proportional to the number of stages in the device, the operating frequency, and the way the individual stages have been biased. In order to reduce this variation, it is often necessary to temperature compensate the amplifier.

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