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THE FEUTEX TOOLKIT

ADC SINAD and Effective Bits

Combine measured noise and distortion ratios into SINAD and ENOB.

Signal Processing workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaSINAD=−10log10(10^(−SNR/10)+10^(THD/10)); ENOB=(SINAD−1.7609)/6.0206
Sources and model references

Worked example

Inputs

Signal-to-noise ratio
60 dB
THD relative to fundamental
-60 dBc

Expected results

SINAD
56.98970004 dB
Effective number of bits
9.173303034 bits

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter the labeled inputs in the indicated units.
  2. Calculate and compare every output against the stated model assumptions.

Try this example

{
  "snr": 60,
  "thd": -60
}

Accuracy and scope

Full-scale sine and nonoverlapping noise/distortion power; THD entered as negative dBc. Simplified analytical model; not a design recommendation or safety certification.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.