Abstract
Two new DAC modeling techniques, based on principles of wavelet theory, are described in this paper. A macro model and mathematical model are developed for analog and digital circuit simulation, respectively, for fast and accurate results using an exponential function, damped sine wave, and linear waveform. An 8 bit DAC has been implemented to simulate and evaluate the models. The INLs of the macro and mathematical model based simulations are /spl plusmn/ 0.2 LSB, which are the same as HSPICE simulation. The DNLs of HSPICE simulation, macro model, and mathematical model based simulations are /spl plusmn/ 0.22 LSB, /spl plusmn/ 0.28 LSB, and /spl plusmn/ 0.25 LSB, respectively. The simulation times are 2.9 s for the macro model, 0.15 s for the mathematical model, and 68.09 s for the HSPICE simulation.
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