DIGITAL · INTERACTIVE CALCULATOR

Nyquist Minimum Sample Rate Calculator

Find the theoretical Nyquist sampling boundary and learn why real ADC designs require margin. Choose the unknown and enter the other values to see the rearranged equation and result.

RESULT · SAMPLE RATE40000 Hz

1. Rearrange: fs,min = 2fmax.

2. Substitute: fmax = 20000 Hz.

3. Calculate fs = 40000 Hz.

This is a theoretical boundary. Choose an actual sampling rate above it and add an anti-alias filter.

Check component tolerances and device limits before building a real circuit. Report an error.