Signal-to-noise and distortion ratio (SINADR) is a measurement of the purity of a signal. SINADR is typically used in data converter specifications. SINADR is defined as:
where is the average power of the signal, quantization error, random noise and distortion components. SINADR is usually expressed in dB. SINADR is a standard metric for analog-to-digital converter and digital-to-analog converter.
SINADR (in dB) is related to ENOB by the following equation:
- Lavrador, Pedro Miguel Telecommun. Inst., Univ. of Aveiro, Portugal de Carvalho, N.B.; Pedro, Jose Carlos (March 2004). "Evaluation of signal-to-noise and distortion ratio degradation in nonlinear systems" (PDF). IEEE Microwave Theory and Techniques Society. 52 (3): 813 – 822. doi:10.1109/TMTT.2004.823543. ISSN 0018-9480. horizontal tab character in
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