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What program are you using for analog simulation ?

What progam you are using for analog simulation as a primary tool

  • spectre/spectreRF

    Votes: 0 0.0%

  • eldo/eldoRF

    Votes: 0 0.0%

  • hspice/hspiceRF

    Votes: 0 0.0%

  • smartspice

    Votes: 0 0.0%

  • generic spice3 or xspice

    Votes: 0 0.0%

  • in-company internal simulator (mcspice, nsspice, aplac, etc.)

    Votes: 0 0.0%

  • fast table-driven simulator (like hsim, ultrasim, etc.)

    Votes: 0 0.0%

  • Other (please write which)

    Votes: 0 0.0%
  • Total voters
    0
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steer

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analog simulator poll

Just to have some statistics on various tools populariity.
If you are using a few of them, chose your primary tool.
Please feel free to write comments too.
 

Re: analog simulator poll

Intermediate results and conclusions:

Cadence looks like a big winner on analog market with almost 60% share!
Quite an unexpected result as I thought Cadence, Mentor and Synopsis are more-less even here.

Also, there are no large corporation employees here on this board, as nobody chose internal company tools.

Look forward for more votes.
 

analog simulator poll

The results of pretty similar poll are here:


Another thing is that the poll has only one option - e.g. we are using both Cadence and ADS for different things.
 

    S

    steer

    Points: 2
    Helpful Answer Positive Rating
Re: analog simulator poll

Sorry, I did not see this previous poll. In fact, I searched for previous polls but my search returned nothing.

While we are at this, I plan to make another poll on how many years of experience in IC-level analog design board members have.
Any such polls in the past?
 

Re: analog simulator poll

Of course HSPICE and HSPICERF.
 

Re: analog simulator poll

I think it because Spectre is bundled in dfII environment (Opus, Composer, Virtuoso, etc). to use Hspice you must buy additional licenses.
 

Re: analog simulator poll

Analog_starter said:
Of course HSPICE and HSPICERF.
Click to expand...

HspiceRF is still under development.
 

analog simulator poll

we use spectre.
 

analog simulator poll

hspice is still the best choice for accuracy
 

Re: analog simulator poll

It seems few people use eldo, I want to use eldo, who can give me some advice.
 

Re: analog simulator poll

bear7679 said:
It seems few people use eldo, I want to use eldo, who can give me some advice.
Click to expand...

Every simulator has its strong and weak points. Eldo is not the exception.
Go ahead and use it. Only you can decide if edo has the right mix of strength ane weaknesses for your particular application.
 

Re: analog simulator poll

I use Spectre. Not that I like it but because Cadence has PDKs for nearly every foundry! And since models are ALWAYS extracted for HSPICE and SPECTRE. And since more people use Spectre than any other tool I have reasonable assumption that models are proven and polished for it.

I like ELDO since it has better convergence and speed. Models - bad news not many foundries have them, if you find them not many people used them before so you could run into problems.

So to me models and their reliability is the key - not the tool itself. And doesn't it also depend on what company buys? I'd love to use Agilent tools but sorry no budget + models for those....

Questions what tool I like are not anything else than asking what you like more blonds or brunetts.....
Amd if you are interested b) is the answer!
 

Re: analog simulator poll

after the coporattion between cadence and @glilent "RFDE" many foundaries will produce the models for @DS , specially it is very powerfull in RF simulation

about eldo , it donot converge well , i have used it and some of my coworkers
simply Spectre is more powerfull than ELdo "in rf"

in analog simulation u can say they r the same .
 

Re: analog simulator poll

Teddy said:
I use Spectre. Not that I like it but because Cadence has PDKs for nearly every foundry! And since models are ALWAYS extracted for HSPICE and SPECTRE. And since more people use Spectre than any other tool I have reasonable assumption that models are proven and polished for it.
Click to expand...

eldo can use hspice and spectre models as is. In terms of compatability eldo is compatible with whole lot of other environments. For example, eldo can write simulation results in psf format so that Cadence DFII can see it, plot graphs, use waveform calculator, etc. just like with spectre results.
eldoRF is another story. It's much more limited than spectreRF.
 

Re: analog simulator poll

Has anyone here tried Ansoft Nexxim ?

**broken link removed**

"U-Chip evaluated the performance of several commercial simulators before selecting Nexxim. Benchmarks performed on a memory cell with 47,500 transistors established the clear advantages provided by Ansoft technology with results that matched measurements within 1 percent. One well-known SPICE simulator, while providing transistor-level accuracy, failed to handle the large transistor count. Two commonly used fast-SPICE simulators offered the capacity, but predicted incorrect DC solutions and distorted transient waveforms after the first few clock cycles. "We must have confidence in our circuit simulator before we can commit to silicon," says Juei-Lung Chen. "Fast-SPICE simulators are not fast at all if you end up re-spinning the chip."
 

Re: analog simulator poll

itaifrenkel said:
Has anyone here tried Ansoft Nexxim ?
Click to expand...

This is worth posting in a separate thread. I doubt many people can see it here.
I've heard Ansoft's claims of being few times faster than hspice. I'm wondering if somebody can independently confirm this.
 

Re: analog simulator poll

hspice is also good, especially its user manual
 

Re: analog simulator poll

What about layout tools?

I don't know why ppl prefere to use Virtuoso Layout editor rather than Mentor IC station! I don't know why i feel that IC station is much powerfull than Virtuoso!!

In general, Mentor tools seems to be better in interface and functionality than Cadence, but Cadence is much popular.. This's my idea!
 

analog simulator poll

I use the calibre to do layout check.
it's mentor tool. I think it's very useful.
 

Re: analog simulator poll

steer said:
Just to have some statistics on various tools populariity.
If you are using a few of them, chose your primary tool.
Please feel free to write comments too.
Click to expand...


eldo/eldoRF
 

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