Automatic Digital Modeling for Analog Blocks in Mixed-Signal Verification

Analog circuits are indispensable in practical circuit design, even in digital circuit systems. Mixed-signal circuits often cost a lot of simulation time. In this paper, we propose an automatic digital modeling algorithm to speed up the mixed-signal simulation. The algorithm is based on dynamic mode decomposition (DMD), which converts the mixed-signal circuit into a pure digital circuit. Experiments shows >100X speed-up compared with mixed-signal simulation.