Evaluation of ADC Static Parameters via the Frequency Domain

In order to reduce the cost of the test procedure for ADCs, it would be of great interest to evaluate static performances via the frequency domain. Indeed, estimating static parameters from spectral analysis would permit to extract the complete set of ADC parameters (both static and dynamic) with shorter processing time and reduced hardware resources. Results presented in this paper concern the influence of static errors on the classical dynamic parameters. It is shown that under appropriate test conditions, the dynamic parameters extracted from a standard FFT exhibit significant variations allowing the detection of ADC offset, gain and non-linearity errors.