Spice models come in two variations: Intrinsic models and Subcircuit models.
Subcircuit models are ‘schematic based’ models that use combinations of the 25 or so intrinsic models that are built into Spice.
Subcircuit models (.SUBCKT … .ENDS) provide a more complicated transfer function such as OpAmps, Switchmode Power Supply Controllers, Optocouplers, etc.
Creating subcircuit models requires a more involved engineering approach.
Prices are quoted by device. Pricing varies depending on the type of model required, and are based on an estimated number of hours to create, test and document.
Please contact us with your requirements. Please send a copy of the datasheet for the device that you would like us to model.