Pspice Hspice, Xspice

[kummari]

hi..
can anyone tell me whats the difference between Hspice and Pspice and Xspice engines....and which is best among all...tools which use these simulators?
thanks :grin:

 

[atripathi]

It depends upon you application and type of design. If you are doing large IC designs, you may want to go for HSpice. For PCB application you want to use PSpice. if your simulation environment is Windows, you may not have HSpice available on that OS, thus PSPice would be best choice.

 

[h_vogt]

XSPICE is an extension to spice3 and now fully integrated into open source ngspice (and some other spices). It allows you to add mixed signal simulation capability to ngspice by an efficient event driven algorithm for the digital part. It also enables you to add extra analog or digital device models written in C language.

 

[kummari]

thanx for ur replies...but hspice works on windows environment too...n what simulator does multisim use?

 

[eemonk]

AFAIK Multisim uses XSPICE, which is derived from SPICE3 from UC Berkeley. The NGSPICE from Open EDA tools has incorporate XSPICE commands to provide event-driven simulation. XSPICE is originated from Georgia Tech.

Both HSPICE and PSPICE are derived from SPICE2 program in the 90's. The companies (Avanti (now Synopsys) for HSPICE and MicroSim (now Cadence)) have been improving the tools with their custom extensions. HSPICE has been treated as the golden standard in IC designs, but it is really slow. PSPICE was aiming more towards to the PCB design.