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Resistors

General Form:
rname n1 n2 [value] | [modname modopts]
Examples:
rload 2 10 10k
rmod 3 7 rmodel l=10u w=1u

If a model name modname is given, the following modopts can appear.

res=value or resistance=value
The resistance of the resistor at nominal temperature. If given, this supersedes a geometric calculation using l, w. The ``res='' or ``resistance='' is optional, as a lone number value will be interpreted as the nominal temperature resistance.
l=length
The length of the resistor.
w=width
The width of the resistor.
temp=optemp
The operating temperature of the resistor.

The n1 and n2 are the two element nodes, and value is the resistance, for a constant value resistor. A resistor model modname can alternatively be specified and allows the modeling of temperature effects and for the calculation of the actual resistance value from strictly geometric information and the specifications of the process. If value is specified after modname, it overrides the geometric information (if any) and defines the nominal temperature resistance. If modname is specified, then the resistance may be calculated from the process information in the model modname and the given length and width. In either case, the resulting value will be adjusted for the operating temperature optemp if that is specified, using correction factors given in the model. If value is not specified, then modname and length must be specified. If width is not specified, then it will be taken from the default width given in the model. See the resistor model description in 2.17.3 for more information.


next up previous contents index
Next: Switches Up: Passive Element Lines Previous: Coupled (Mutual) Inductors   Contents   Index
Stephen R. Whiteley 2006-10-23