High-level optimization of built-in self test for analog to digital converters

This paper presents the analysis and optimization of a cheap polynomial fitting method for built-in analog to digital converters testing. Optimization has been carried on using a high-level mixed-signal cosimulation and codesign tool called CodeSimulink. Measurements have validated the high-level model, which therefore proved to be reliable. The optimization carried on by using the proposed approach, allowed to reach the same accuracy (ap90 dB) achieved by the more expensive FFT-based test strategy. The high-level model has then been automatically converted into a VHDL file, which can then be compiled to either FPGA or built-in as an ASIC into the converter itself