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Help on spice syntax

J

Jeff

Jan 1, 1970
0
Hi All,

I am new to SPICE. I hope I can use it to verify the ideas without
working on breadboards. Here's my question:

I have code like this:

..Param X64=8
....
Q_Q5 $N_0024 $N_0023 $N0025 PNP8 {x64}
....
..Model PNP8 PNP

The problem is my simulator doesn't understand what
"Q_Q5 $N_0024 $N_0023 $N0025 PNP8 8" means. I tried my textbook,
couldn't find what the last "8" means either. I want rewrite it in a
way that my simulator can recognize.

Could someone help?

Thanks in advance,
Jeff
 
J

Jim Thompson

Jan 1, 1970
0
Hi All,

I am new to SPICE. I hope I can use it to verify the ideas without
working on breadboards. Here's my question:

I have code like this:

.Param X64=8
...
Q_Q5 $N_0024 $N_0023 $N0025 PNP8 {x64}
...
.Model PNP8 PNP

The problem is my simulator doesn't understand what
"Q_Q5 $N_0024 $N_0023 $N0025 PNP8 8" means. I tried my textbook,
couldn't find what the last "8" means either. I want rewrite it in a
way that my simulator can recognize.

Could someone help?

Thanks in advance,
Jeff

Every simulator I know of would recognize that means "Area=" 8

Except I just realized...lose the "x" and the curly brackets.

...Jim Thompson
 
J

Jeff

Jan 1, 1970
0
Every simulator I know of would recognize that means "Area=" 8

Except I just realized...lose the "x" and the curly brackets.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

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- Show quoted text -

I am using Protel se 99, pretty old software to capture schematic and
design PCB. It has a built in spice simulator. Maybe I need find some
other solutions.

Code like this can not be recognized either:

m8 550 550 V- V- nix l=2u w=25u m=26

..model nix nmos(vto=0.75 kp=205.5u rd=1 rs=1 rg=1 rb=1 cgso=4e-9
+cgdo=4e-9 cgbo=16.667e-9 cbs=2.34e-13 cbd=2.34e-13)

Faint!

Jeff
 
H

Helmut Sennewald

Jan 1, 1970
0
Jeff said:
I am using Protel se 99, pretty old software to capture schematic and
design PCB. It has a built in spice simulator. Maybe I need find some
other solutions.

Code like this can not be recognized either:

m8 550 550 V- V- nix l=2u w=25u m=26

.model nix nmos(vto=0.75 kp=205.5u rd=1 rs=1 rg=1 rb=1 cgso=4e-9
+cgdo=4e-9 cgbo=16.667e-9 cbs=2.34e-13 cbd=2.34e-13)

Faint!

Jeff

Hello Jeff,

You could use LTspice to run your netlists.
I have checked both of your examples and they run in LTspice.
Even better you could use LTspice for your schematic too.

LTspice is a free unlimited SPICE simulator from Linear Technology.
I assume it's now the mostly used SPICE simulator.
http://www.linear.com/designtools/software/index.jsp
User group
http://tech.groups.yahoo.com/group/LTspice/

Best regards,
Helmut
 
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