1
Download HSPICE Model Guide - Sam Annor Main Page
Transcript
Selecting MOSFET Models: Level 1-40 LEVEL 3 Model Equations The current Ids is given by: vgs<von I ds = I ds ( von, vde, v sb ) ⋅ v gs – von ---------------------e fast vgs von I ds = I ds ( v gs, vde, v sb ) Note: The model does not use the modified threshold voltage in strong inversion. If WIC=3, the model calculates subthreshold current differently. In this case, the Ids current is: I ds = I ds ( v gs, vde, v sb ) + isub ( N0 eff , ND eff , v gs, v ds ) Subthreshold current isub for LEVEL=3 is the same as for LEVEL=13 (see Subthreshold Current ids on page 9-116). N0eff and NDeff are functions of effective device width and length. True-Hspice Device Models Reference Manual, Release 2001.4, revision A 9-29
