This converter calculates the Effective Number of Bits (ENOB) from a given Signal-to-Noise and Distortion Ratio (SINAD) value. It helps determine how accurately an Analog-to-Digital Converter (ADC) can represent an analog signal.
Formula
ENOB = (SINAD – 1.76) / 6.02
Formula Explanation
- SINAD is measured in decibels (dB) and represents the combined effect of noise and distortion.
- 1.76 is a correction factor for quantization noise.
- 6.02 represents the dB value per bit of resolution in an ideal ADC.
Example
Input: SINAD = 62 dB
Result: ENOB = (62 – 1.76) / 6.02 ≈ 10 bits
Who uses it
Useful for engineers testing ADC performance or comparing the precision of different converter designs.