Hspice DC sweep question

[020170]

.dc sweep reverse hspice

when I design circuit, I often used to DC sweep or some parameter.

It is so good to see when I want to see current and Voltage as Vin decreasd or
increased.

but now, I want to see Rds or BETA or Cgs etc, as Vgs decreasd or increased.

but How do I display this parameter,Rds BETA , in HSPICE awewave?

I can display current of mosfet in the following command.

....................

.DC Vgs 0 3.3 0.1
.PRINT id(m1)

....................


but I don't know how to display another parameters, Rds, Cgs, BETA etc.

! another Question.

is it true that Hspice simulation speed under LINUX is much fast than under windows?

if it is right, where can I find that ?

thanks.

 

[ezt]

hspice dc sweep

Hi.
In HSpice you can access device parameters by using ':'. e.g. you wanna display rds of a MOS device called m15. so you should use the following instruction.
.print dc rds = par('1/gdso(m15)') v(in)
where in this case we have swept v(in) by using .DC statement. and gdso(m15) means parameter gdso (reverse of rds) of the specified device, m15 here.
there is another way to access device parameters, however. m15:gdso acts exactly like gdso(m15).

And by the way, I don't know anything about your second question.

Regards,
EZT

 

[020170]

current sweep hspice

thanks!

your answer is enough to help me!

I'll study Hspice manual more and more