Re: Pspice model request
Hi abbeyromy,
Thank you for your replying. I know how to create a model with provided spice model from the manufacture. However, I dont know how to create one base on datasheet. I dont know how to obtain the parameters like W,L, RS, UO, IS, CGSO, NFS, etc.
Those FETs that I request pspice model dont have the manufacture's spice model. It says in the product website is " SPICE Model Not Available". So that's a reason I have to create one base on its datasheet.
For example, here is the spice model for AO3418 that I obtained from the manufacturer website:
.SUBCKT AO3418 4 1 2
M1 3 1 2 2 NMOS W=280000u L=0.7u
M2 2 1 2 4 PMOS W=280000u L=0.8u
R1 4 3 RTEMP 25E-3
CGS 1 2 5E-12
DBD 2 3 DBD
**************************************************************************
.MODEL NMOS NMOS (LEVEL = 3 TOX = 2.5E-8
+ RS = 2E-4 RD = 0 VTO=1.7
+ UO = 350 THETA = 0.2 NSUB=2.3e17
+ VMAX = 8E6 XJ = 3E-7 KAPPA = 1.1
+ ETA = 0 TPG = 1
+ IS = 0 LD = 0
+ CGSO = 0 CGDO = 0 CGBO = 0
+ NFS = 2E10 DELTA = 0.1)
*************************************************************************
.MODEL PMOS PMOS (LEVEL = 3 TOX = 2.5E-8
+NSUB = 3E16 TPG = -1)
*************************************************************************
.MODEL DBD D (CJO=10E-12 VJ=0.6 M=0.3
+RS=0.005 FC=0.5 IS=1E-11 TT=1.5E-12 N=1.0 BV=36 IBV=1E-4)
*************************************************************************
.MODEL RTEMP RES (TC1=5.0E-3 TC2=1E-6)
*************************************************************************
.ENDS
I would love to learn how to know all the parameters base on provided datasheet so I can create one.
Thank you,