SIMetrix Intro
==============

SIMetrix is a SPICE based analog simulator, schematic editor and
waveform analyser all integrated in one executable.

It is completely free and has no registration requirements. You can 
use it for as long as you like. It is not crippled - i.e there are no
circuit size limits, time outs or important features disabled
but lacks some of the facilities available with the full versions of the
program.

It will run under Windows 3.1 and higher, Windows 95 and 
Windows NT 3.5, 3.51 and 4.0

SIMetrix V1.1 Latest info


FEATURES
========


* Fully integrated and easy to use schematic editor with 
  multi level undo on all operations. 

* Cross probing of simulation results from schematic. 

* Real-time waveform display - watch waveforms build up as simulation proceeds 

* Comprehensive waveform analysis features such as FFT's
  (Some analysis functions not available with SIMetrix Intro)  

* Circuit size limited only by available memory. 

* Enhanced transient analysis algorithm to reduce convergence problems. 
  SIMetrix can simulate a wider range of circuits than other PC based simulators. 

* User definable menus and key definitions. (Not available with SIMetrix Intro) 


Full versions of the program are supplied with a 200 page manual and model
library with about 1300 devices.

See ORDER.TXT for info on how to purchase full versions of SIMetrix


INSTALLATION
============

ZIP file:
Unzip the files to a directory named "DISK1"
Run SETUP.EXE

THE SETUP PROGRAM WILL FAIL IF THE SUBDIRECTORY YOU COPY THE FILES
TO IS CALLED ANYTHING OTHER THAN "DISK1"



Diskette:
Insert disk in drive a: and run a:SETUP.EXE


Other Info 
==========

The remainder of this file contains other info that didn't make it to on 
line help or light rapidly become out of date.



MODELS
======

Some manufacturers models can be downloaded from World Wide Web. Below
is a list of sites to try.

Analog Devices
""http://www.analog.com/products/index/spice_index.html"

Motorola:
"http://motserv.indirect.com/home2/models/bin/amp2.html"
"http://motserv.indirect.com/home2/models/bin/rec3.html"
"http://motserv.indirect.com/home2/models/bin/rf2.html"
"http://motserv.indirect.com/home2/models/bin/rf2.html"
"http://motserv.indirect.com/home2/models/bin/mos2.html"
"http://motserv.indirect.com/home2/models/bin/mos3.html"

Harris
MOSFET models use PSPICE extensions and need converting for use with SIMetrix.
Contact us for advice on what is needed.
"http://www.semi.harris.com/models/pwr-mm"
"http://www.semi.harris.com/models/lin-tel-mm"

National Semiconductor
"http://www.nsc.com/models/spice/analog/nscspice.htm"

Texas
"http://www.ti.com/sc/docs/msp/download.htm"

Maxim
"http://www.maxim-ic.com/spice.html"

Burr-Brown
"http://www.burr-brown.com/support/support.html"

International Rectifier
"http://www.irf.com/~ir/product-info/spice/"

Others
Burr-Brown, Harris, Linear Technology, Motorola, National Semiconductor, Texas, Zetex
"http://www.ee.ualberta.ca/~charro/cookbook/spice"

Analog Devices, Texas, BJT models from unknown source (and unknown reliability):
"http://www.funet.fi/pub/cae/spice/models"

