C_Model:Capacitor Model

The Spectre capacitor model is translated to the ADS C_Model. For translation information on the capacitor device, refer to Capacitor 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 proc_cap capacitor c=2u tc1=1.2e-8 tnom=25 w=4u l=4u cjsw=2.4e-10

Spectre Netlist Syntax:

model mname capacitor [param=value]*

ADS Netlist Syntax:

model mname C_Model [param=value]*

ADS Schematic Symbol:

Model Parameters:

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

Table 8-2. C_Model Parameter Mapping

ADS Name	Unit	Default	Spectre Name	Unit	Default
C	F	1e-12 (1 pF)	c	F	0.0
Cj	F/m2	0.0	cj	F/m2	0.0
Cjsw	F/m	0.0	cjsw	F/m	0.0
Length	m		l	m	0.0
Width	m		w	m	0.0
Narrow	m	0.0	etch	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	scalec		1
Parameters not in Spectre Model
wBv	W	infinity
AllParams
			Parameters not in ADS Model
			trise	°C
			rforce	ohms	1.0
			coeffs=[...]