THE FEUTEX TOOLKIT

ADC Quantization Budget

Estimate ideal code size, RMS quantization noise and full-scale sine SNR.

Signal Processing workspace● Runs in your browser

01 Your input

ResolutionbitsInput spanV

02 Your result

View or copy raw result data

Result data

Formulaq=span/2ᴺ; noise=q/√12; SNR=20log10(2ᴺ√1.5)

Sources and model references

https://www.analog.com/media/en/training-seminars/tutorials/MT-001.pdf

Worked example

Inputs

Resolution: 12 bits
Input span: 4.096 V

Expected results

Code width: 0.001 V
Quantization noise RMS: 0.0002886751346 V
Ideal sine SNR: 74.00811155 dB

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

How to use this tool

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

Try this example

{
  "bits": 12,
  "span": 4.096
}

Accuracy and scope

Uniform uncorrelated quantization and full-scale sine; real ADC noise and distortion excluded. 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.