Patent ID: 9184759
Filing Date: 2015-11-10
Classification: H03M

Abstract:
1. A system comprising: a signal generator for generating an input signal for analog-to-digital converter circuitry, the analog-to-digital converter circuitry configured to generate an output code based upon the input signal; an expected signal generator module communicatively coupled to the signal generator and configured to communicatively couple to the analog-to-digital converter circuitry, the expected signal generator module for generating an expected output code based upon the input signal; an output code error signal module configured to communicatively couple to the output of the analog-to-digital converter circuitry and to the output of the expected signal generator module, the error signal module for generating an output code error signal representing a difference between the output code and corresponding expected output code; a nonlinearity modeling module communicatively coupled to the output code error signal module, the nonlinearity module for modeling a predicted nonlinearity value based upon the output code; and a nonlinearity error signal module communicatively coupled to the output code error signal module and the nonlinearity modeling module, the nonlinearity error signal module for generating a nonlinearity error value representing a difference between the output code error signal and the corresponding predicted nonlinearity value.