ADC ENOB, SNR and THD Calculator

This tool computes the Effective Number Of Bits using values for Signal-to-Noise Ratio (SNR) and the Total Harmonic Distortion (THD)




ENOB = ([−10*Log10(10−SNR/10 + 10−THD/10)] – 1.76)/6.02


  • SNR is the Signal-to-Noise Ratio in dB
  • THD is the Total Harmonic Distortion in dB

Related Calculators

  • ADC SNR – Use the number of bits to calculate the signal-to-noise ratio of the analog-to-digital converter
  • ADC bit resolution – calculate the smallest voltage that can be measured by an ADC
  • ENOB – Find the Effective Number of Bits using the SINAD
  • ADC Effective Resolution (not to be confused with effective number of bits)