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SNR / signal-to-noise ratio

Signal-to-noise ratio compares wanted signal power with noise power in the range being considered. It is often expressed in dB.

Also found under: SNR · Signal Rausch Verhältnis · Signal to Noise Ratio · Rauschabstand

A concrete example

An SNR of 10 dB means ten times as much signal power as noise power in the same measurement range.

What to keep in mind

SNR values are meaningfully comparable only with known bandwidth and comparable measurement methods.

Further reference

Original explanation based on the technical documentation. Reviewed on 15 October 2026.

Analog Devices · Receiver sensitivity ↗