L Model-Inductor Model

LEVEL1_Model:LEVEL 1 MOSFET Model

The SPICE and Spectre Level 1 MOSFET models are translated to the ADS MOSFET LEVEL1_Model. For translation information on the MOSFET device, refer to Mxxxxxxx for SPICE or MOSFET Device for Spectre.

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 SPICE Command Line:

.model nch nmos level=1 vto=0 kp=2e-5 ...

Example Spectre Command Line:

model nchmod1 mos1 vto=0.78 gamma=0.56 kp=0.8675e-4 ...

SPICE/Spectre Dialect and Netlist Syntax:

Spice2/3:	.model mname NMOS\|PMOS LEVEL=1 [param= value]*
PSpice:	.model mname NMOS\|PMOS LEVEL=1 [param= value]*
HSpice:	.model mname NMOS\|PMOS LEVEL=1 [param= value]*
Spectre:	model mname mos1 type= [ n \| p ] [param= value]*

ADS Netlist Syntax:

model mname MOSFET NMOS=[0|1] PMOS=[0|1] Idsmod=1 [param= value]*

ADS Schematic Symbol:

Model Parameters:

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

LEVEL1_Model Parameters
ADS	Default	Unit	Spice2/3	PSpice	HSpice	Spectre
Idsmod	1		Level=1	Level=1	Level=1	-
NMOS	yes					type ^† n \(NMOS)
PMOS	no					type ^† n \(NMOS)
Capmod	1					capmod bsim
Vto	0.0	V	x	x	VT	x
Kp	2e-5	A/m ²	x	x	BET, BETA	kp 2.0718e-5 A/V ²
Gamma	0.0	√ V	x	x	.5276	x
Phi	0.6	V	x	x	.576 V	phi 0.7 V
Lambda	0.0	1/V	x	x	LAM, LA	x
Rd	0.0	ohms	x	x	-	x
Rs	0.0	ohms	x	x	-	x
Cbd	0.0	F	x	x	-	x
Cbs	0.0	F	x	x	-	x
Is	1e-14	A	x	x	-	x
Pb	0.8	V	x	x	-	x
Cgso	0.0	F/m	x	x	-	x
Cgdo	0.0	F/m	x	x	-	x
Cgbo	0.0	F/m	x	x	-	x
Rsh	0.0	ohms/sq.	x	x	-	x
Cj	0.0	F/m ²	x	x	-	x
Mj	0.5		x	x	-	x
Cjsw	0.0	F/m	x	x	-	x
Mjsw	0.33		Spice3 \(0.50)	x	-	x
Js	0.0	A/m ²	x	x	-	0.0
Tox	1e-7	m	x	x	x	x
Nsub	0.0	1/cm3	x	x	DNB, NB \(1e15)	nsub1.13e16 1/cm3
Nss	0.0	1/Cm ²	x	x	-	x
Tpg	1		x	x	-	x
Ld	0.0	m	x	x	DLAT, LATD	x
Uo	600.0	Cm ² /\(VxS)	x	x	x	x
Kf	0.0		x	x	-	x
Af	1.0		x	x	-	x
Fc	0.5		x	x	-	x
N	1.0		-	x	-	x
Imax	10.0	A	-	-	-	1 A
wBvsub	infinite	V	-	-	-	bvj infinite V
wBvg	infinite	V	-	-	-	vbox 1e9 x tox V
Temp ^††	25	°C	-	-	-	-
Rg	0.0	ohms	-	-	-	-
Rds	infinity	ohms	-	-	-	-
Tt	0.0	sec	-	x	-	-
Ffe	1.0		-	-	-	-
wVsubfwd	infinity		-	-	-	-
wBvds	infinite		-	-	-	-
wIdsmax	infinite		-	-	-	-
wPmax	infinite		-	-	-	-
^† If type = nmos then NMOS = yes and PMOS = no; if type = pmos then NMOS = no and PMOS = yes ^{††^ Temp = trise \+ temp \("temp" is an ADS global variable)}

Comments:

ADS does not support NRD, RDC, NRS or RSC MOSFET parameters. If RD or RS are not given, they will be calculated as follows:
RD=NRD*RSH+RDC
RS=NRS*RSH+RSC