Tags: ADC, education, SNR, signal-to-noise ratio, theory
For N-bit ADC the signal-to-noise ratio is calculated as follows :
SNR = 6.02 N + 1.76 dB
The conclusion is simple: in order to improve the SNR in a conventional ADC, its resolution, that is, number of bits, must be increased.
Maxim Integrated Products, Inc., TUTORIAL 1870: Demystifying Delta-Sigma ADCs (link available 2015.06)