Every electronic circuit has some noise and it can affect both analog and digital circuits. Some noise comes from outside interference while some comes from random factors such as thermal effects.
When evaluating the dynamic performance of precision analog-to-digital converters (ADCs) using fast Fourier transform (FFT) analysis, coherent sampling typically is used to accurately measure the ...
A Fast Fourier Transform (FFT) plot is generated by collecting a large number of conversion samples from the output of the A/D converter in a periodic fashion that is receiving an AC input signal.
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