These equations predict the RF electrical performance of Analog-to-Digital Converters. Since A/D converters are often the last stage in a receiver chain, it is extremely useful to be able to predict the contribution for noise figure, jitter, dynamic range, etc., since those values are needed for a complete cascade analysis. Be sure to note units both for the input parameters and for the equations, or you will end up with really bad results.

At the bottom of the page is an interactive calculator based on the Microsoft Office Web Components  (OWC), which allows an Excel spreadsheet to be embedded on the page.

A/D input full-scale power	Variable Definition VFS Full-scale peak input voltage Jitter Aperture jitter time "q" Levels Number of "q" levels FAnalog Sampled analog input signal frequency PFS Full-scale input power P1q Power of one "q" level DR Dynamic range VFS Full scale input voltage V1q Input voltage at one "q" levels Vnq Input voltage at "n" quantization ("q") levels # of bits Total number of bits PJitter Power in aperture jitter SNR Signal-to-noise ratio Note: Thanks to John P. for pointing out jitter power equation discrepancy that omitted the input resistance.
Power of one "q" level
Dynamic range
A/D input full-scale rms voltage
One “q” level at peak voltage
Same as above, in rms
Voltage level at “n” quantization (“q”) levels
Same as above, in rms
Power of “n” quantization (“q”) levels
Input dynamic range for “N” bits
Jitter power
Signal-to-noise ratio
This calculator uses the above equations Office Web Components (OWC) are required for this calculator to function.