Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Change the model of a transistor

Status
Not open for further replies.
M

MohEllayali

Guest
Newbie level 1
Hello everybody

I have the following problem :

I simulated a circuit with the following transistor plvtlp_rf

**broken link removed**

it's model is defined in the modelfile by the subckt statement plvtlp_rf

**broken link removed**

so far no probleme

the subckt plvtlp_rf uses a bsim4 model, so i wamted to replace it by the
plvtlp_rfpsp subckt wich uses a psp model like in the picture


**broken link removed**

so what i did , i created a new transistor cell, by copying the previous one (plvtlp_rfpsp) and gaving it the name plvtlp_rfpsp

**broken link removed**

but when i generate the netlist , I still have the plvtlp_rf transistor instead of plvtlp_rfpsp

**broken link removed**

what am doing wrong :|:|:cry:

all i want to do is to change the model of the transistor !!!!!!!!!!
 

The netlisting of that particular symbol may be hard coded, if you
can't find an editable "model" property.

You could use an analogLib transistor instead with the proper
model called out, or you could copy the PDK transistor
cell to something appropriate and try to chase down the netlist
procedure and make your own.

Or, you could hijack a similar but unused PDK model and edit
/ substitute its macro (subckt) code.
 

I think you are right, here is how my property looks like

**broken link removed**

I think I will need a work around, thank you for the tips you proposed, I will use one of them
 

For changing the model of transistor, you would like to use an analog lib transistor instead to proper model called out and hijack a similar to.would
 

If you use Config file for your schematic, you can simply change the view of transistor from standard to psp.
 

Did you try to change CDF properties of your device? CIW->Tools->CDF->Edit->lib/device name and change model name...
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top