Sensitivity (electronics)
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The sensitivity of an electronic device, such as a communications system receiver, or detection device, such as a PIN diode, is the minimum magnitude of input signal required to produce a specified output signal having a specified signal-to-noise ratio, or other specified criteria. In general, it is the signal level required for a particular quality of received information.[1]
In signal processing, sensitivity also relates to bandwidth and noise floor.
Sensitivity is sometimes improperly used as a synonym for responsivity.[citation needed][2]