R_Model:Resistor Model

The Spectre resistor is translated to the ADS R_Model. For translation information on the resistor device, refer to Resistor Device.

For more information on the ADS model, place the model in a schematic and choose Edit > Component > Edit Component Parameters to view the model parameters. You can also click Help in the component editor dialog box for additional information.

Example Spectre Command Line:

model resmod resistor rsh=150 l=2u w=2u etch=0.05u tc1=0.1 tnom=27 kf=1

Spectre Netlist Syntax:

model mname resistor [param=value]*

ADS Netlist Syntax:

model mname R_Model [param=value]*

ADS Schematic Symbol:

Model Parameters:

For information on parameter format, refer to Using Parameter Mapping Tables to Understand a Translation.

Table 8-1. R_Model Parameter Mapping

ADS Name	Unit	Default	Spectre Name	Unit	Default
R	ohms	50	r	ohms	infinity
Rsh	ohms/sq	0.0	rsh	ohms/sq	infinity
Length	m	0.0	l	m	infinity
Width	m	0.0	w	m	1e-6
Dw	m	0.0	etch	m	0.0
Dl	m	0.0	etchl	m	0.0
Tnom	°C	25	tnom	°C	set by options
TC1	1/°C	0.0	tc1	1/°C	0.0
TC2	1/°C2	0.0	tc2	1/°C2	0.0
Scale		1.0	scaler		1.0
Parameters not in Spectre Model
Narrow	m	0.0
wPmax	W	infinity
wImax	A	infinity
AllParams
			Parameters not in ADS Model
			trise	°C	0.0
			thres	ohms	1.0e-3
			coeffs=[...]
			kf		0.0
			af		2.0