Definition
An often used definition for ENOB is
- ,
where all values are given in dB, and
- SINAD is the ratio indicating the quality of the signal
- The 6.02 term in the divisor converts decibels (a log10 representation) to bits (a log2 representation)
- The 1.76 term comes from quantization error in an ideal ADC
This definition compares the SINAD of an ideal ADC or DAC with a word length of ENOB bits with the SINAD of the ADC or DAC being tested.
Read more about this topic: Effective Number Of Bits
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