This paper demonstrates a possibility to realize a simulation of testing strategy of high-resolution Sigma-Delta modulator using MATLAB SIMULINK and Xilinx EDA tool environment. This brief works explore towards smart computation static and dynamic parameter of sigma delta Analog and converter (ADC) .Novelty of computation method introduce here in the Output Response Analyzer (ORA) and On chip test generation being used for testing of ADC parameters which help in reducing the difficulties in design complexity of integrated circuit . Moreover, the reusable features of hardware in the computation of different parameters are also improved in the ORA design of BIST.