[SI-LIST] Re: Different Spice netlists

This response is not totally correct. There are lots of differences 
between different SPICE programs. The most obvious are various versions
of controlled sources. Although the capability in many SPICE programs
is the same, the syntax can be quite different. Arbritrary sources can
also be quite different in syntax. Even the syntax of the 
passive component such as IC resistors, mutual
inductance coeficient and non-linear capacitance can be quite different.
While the language is generic the syntax and some capabilities are not.

Craig is correct that Hspice has some proprietary transistor level
models.
Over the years this has distinquished Hspice from other flavors. The
W element although widely used is not something that other SPICE vendors
do not have. On the contrary, although not called W element there are
coupled lossy transimission line models in other SPICE programs.
Some are rather good and developed long before the now famous W element. 
I do agree that the language of SPICE is generic and many algorithms
used
are the same or nearly so. Most SPICE programs are taylored for specific
applications. Price is also a huge factor when making a choice.

Best Regards,
  

"Clewell, Craig" wrote:
> 
> Br,
> 
> NO, there is no difference for generic components.   However, there are
> subtle differences between HSPICE and a generic Berkley SPICE.  HSPICE has
> some proprietary level models for some silicon that other flavors do not.
> They also included the W element which is something that other brands of
> SPICE do not have.  When you think of SPICE in general you should not only
> be thinking about your circuit connections, but also that of a programmer as
> well.  SPICE is a "computer" program that describes your circuit behavior.
> Synopsis (HSPICE) has extended the language to include some of their own
> syntax.  Other SPICE vendors have done this as well.
> 
> If you buy a book on SPICE most of the "generic language" will be described.
> Once you conquer the generic components the differences from one flavor to
> another will become apparent.
> 
> Craig
> 
> 
> 
> -----Original Message-----
> From: erno.lahteenmaki@xxxxxxxxx [mailto:erno.lahteenmaki@xxxxxxxxx]
> Sent: Wednesday, January 29, 2003 1:55 AM
> To: si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] Different Spice netlists
> 
> Hello
> 
> Is there any differencies between Spice netlists,
> for example Eldo, HSpice and Berkeley Spice netlists?
> I mean that part where the actual component or circuit is
> described. Are they similar or not? If someone has links to
> page where different spice models are compared, I'd like to hear about =
> them.
> 
> Br, Erno
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-- 
Fred Balistreri
fred@xxxxxxxxxxxxx

http://www.apsimtech.com
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