Behavioral modeling of multitechnological systems with VHDL-AMS and simulating with spice

During the past years, a lot of works have been done about behavioral models and simulation tools. But a need of modeling strategy still remains. We present a possible strategy of modeling multitechnological (electric and nonelectric) systems by using VamSpiceDesigner, created by GET/ENST, containing free tools as a hierarchical schematics, a VHDL-AMS compiler and a SPICE simulator. In the introduction, the VamSpiceDesigner tool is described. The next sections shows three examples which represent different aspects of multitechnology: microelectronics, mechatronics and colorimetry.