Calculators » Signal and Communication » SINAD to ENOB Converter

SINAD to ENOB Converter

sinad enob converter adc signal processing

This page provides converters and calculators for converting between SINAD (Signal-to-Noise and Distortion ratio) and ENOB (Effective Number of Bits).

SINAD to ENOB Calculator

Inputs

Outputs

EXAMPLE:

  • INPUT: SINAD in dB = 20.00
  • OUTPUT: ENOB in bits = 3.02

ENOB to SINAD Calculator

Inputs

Outputs

EXAMPLE:

  • INPUT: ENOB = 3.0 bits
  • OUTPUT: SINAD = 19.82 dB

Effective Number of Bits (ENOB)

ENOB defines the measured performance of an ADC (Analog-to-Digital Converter) with reference to the input frequency. As the input frequency increases, the overall noise also increases, reducing both the ENOB and the SINAD.

The relationship between ENOB and SINAD is expressed as follows (see equation below).

Signal to Noise And Distortion Ratio (SINAD)

SINAD is the ratio of the RMS (Root Mean Square) signal frequency input to the ADC to the RMS value of the (noise + harmonic) content. It is expressed in dB (decibels).

SINAD = 20 * log10 ( SIGNALrms / (NOISE + HARMONICS)rms )

SINAD vs ENOB Equation

The following equation or formula is used to convert from SINAD to ENOB and vice versa.

SINAD vs ENOB converter