Question Bank (1 mark) · Q20
Q.Write any one application of logarithmic amplifier.
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Example: analog multiplication and division of signals.
The logarithmic amplifier converts a wide range of input amplitudes into a narrower output that varies as the logarithm of the input. This property is exploited in several ways. In analog computation, adding two logarithms corresponds to multiplication and subtracting them to division, so log (and anti-log) amplifiers together perform analog multiplication and division. Log amplifiers are also used to compress signals having a very large dynamic range so they fit within a limited …
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