对于运放的THD+N和位数该如何理解理解(有效位数ENOB=(SINAD-1.76)/6.02)
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An often used definition for ENOB is
,where all values are given in dB, and
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.
1.76是数字系统量化误差损失的动态范围。6.02是 (log10 / log2),用于将dB转换为bit数。