From: Joerg Hansmann (info_at_jhansmann.de)
Date: 2001-12-21 12:37:08
Hi,
----- Original Message -----
From: sademade <sademade_at_yahoo.com>
To: <buildcheapeeg_at_yahoogroups.com>
Sent: Thursday, December 20, 2001 4:09 AM
Subject: [buildcheapeeg] Sim files available ?
> Joerg, do you think you could provide with your
> Spice files, did you mention that you use student
> or free version of the Microsim8 ?
Yes. It is the free version (limited to 50 parts and max. 3 op-amps)
(see Microsim8 Eval zip-file in attachment)
I have zipped the most complete schematic. However it is
somewhat inaccurate now, because the input HP
is not working as intended.
> Would like to
> try to learn something from the simulations.
They are rather restricted and I am not very experienced in
simulations. So I had to use voltage controlled voltage
sources to simulate OPAMPS etc.
> Also, is there any board-level simulation tools that
> one could estimate the noises on analog boards, somewhat
> distantly reminescent of crosstalk/emc simulations that
> one can do with 30 day demo versions of edwin2k, and
> 100-pin limitedly with Target3001 demos ... is there any
> analog board-sims
I do not know about such free available tools.
- always thought they were part of some professional
PCB router packages and way beyond my budget.
> that could estimate noise, ie, does any
> boardsim simulate analog-routing and analog parts such
> as the INA114 etc, or is it spice only,
Yes - and with restrictions but with a nice GUI.
> and how then
> to turn the spice-sim to even moderately noiseless analog
> routing/shielding/guarding etc. This problem area that have
> never found really good books of the analog routing/simming,
> has always kept me from diving too deep to the analog design
> world.
Perhaps we can compile some routing guidelines here.
Regards,
Joerg
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