1	Taming Analog Model Complexity Marek Mierzwinski Tiburon Design Automation, Inc. FSA September 2002
2	Typical model flow
3	Model Implementation Issues Existing source-code interfaces pose challenges Inherently non-portable High burden on the developer to: Manually compute matrix stamp Manually compute derivatives Implement multiple, self-consistent entry points for analysis types Be familiar with simulator-specific architecture Require close cooperation with the simulator vendor Timely updates and defect fixes are difficult
4	Existing solution Current analog-HDL simulators are Slow Not universally available Do not offer IP protection For analog modeling Speed equivalent to simulator built-ins Support of a wide range of analysis types (including RF) Support for noise, sensitivity analysis, optimization, and efficient sweeping. Language must be supported consistently Model validation, checking, and debugging tools are critical
5	Tiburon Design Automation Solution Performance and robustness rivaling that of existing C/C++ level interfaces. Support all analysis types, e.g. transient, harmonic balance, shooting. Models to be developed once and run everywhere.
6	New Modeling Ecosystem
7	Verilog-A Solution For the vendor Removes need to support complicated standard models. Proprietary Verilog-A models still can be developed. For the foundry One parameter set. For the end-user Solves the problem of model implementation and compatibility. For the model developer Concentrate on model, not simulator issues. Immediately available on all platforms.
8	"Tiburon Design Automation," Tiburon Design Automation, Inc. www.tiburon-da.com