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What is the SNR of an ideal 10 bit ADC ?
  • a)
    81.96 dB
  • b)
    51.96 dB
  • c)
    61.96 dB
  • d)
    71.96 dB
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
What is the SNR of an ideal 10 bit ADC ?a)81.96 dBb)51.96 dBc)61.96 dB...
Concept:
  • SNR (Signal-to-Noise Ratio) of an ADC (Analog-to-Digital Converter) is a measure of the quality of the ADC's output signal.
  • It represents the ratio of the amplitude of the input signal to the amplitude of the noise present in the output signal. In other words, it is a measure of how much the signal level exceeds the noise level in the output of the ADC.
  • SNR is a calculated value that represents the ratio of RMS signal to RMS noise.
  • If we multiply the log10 of this ratio by 20 to derive SNR in decibels.
  • An ADC’s ideal SNR equals 6.02N + 1.76 dB, where N is the number of bits.
Calculation:
SNR of an 10 bit ADC = 6.02 × 10 + 1.76 =61.96 dB
Hence the correct answer is option 3.
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