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STMicroelectronics Models<br />

What Does Eldo-ST Mode Change?<br />

optyp=1 (Default)<br />

or optyp=3<br />

Table E-1. Operating Point—optyp values<br />

When -stver argument<br />

or STVER option is set<br />

ID ID ID<br />

IS<br />

IB<br />

VGS VGS VGS<br />

VDS VDS VDS<br />

VBS VBS VBS<br />

VTH VTH VTH<br />

VDSAT VSS VSS<br />

When -stver argument or<br />

STVER option is set and optyp=2<br />

GM -Gsg gm<br />

GDS<br />

Gds<br />

GMB Gdd+ Gdg + Gds gmbs<br />

Ibd<br />

Ibd<br />

Ibs<br />

Ibs<br />

Gdd<br />

Gdg<br />

Gss<br />

Gsd<br />

Gbd<br />

Gbs<br />

RON<br />

1/max(1e30,Gds)<br />

An explanation of some of these parameters is provided below:<br />

Ibd<br />

Ibs<br />

VTH<br />

VSS or VDSAT<br />

Bulk-drain current through the parasitic BD diode.<br />

Bulk-source current through the parasitic BS diode.<br />

Internal threshold OP dependent; see the Eldo Device Equations<br />

Manual for how it is computed.<br />

Saturation voltage at DCOP.<br />

Eldo® User's Manual, 15.3 1479

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