Could this get the job done for you instead of S/W?

http://www.maxim-ic.com/quick_view2.cfm/qv_pk/1195

Be sure to get App Note 1858 while you are there.

HTH

Vic
________________________________________________________

Victor Fraenckel - The Windman         
victorf ATSIGN windreader DOT com
KC2GUI                                                  

      Home of the WindReader Electronic Theodolite
                               Read the WIND

"Dost thou not know, my son, with how little wisdom the world is governed?"
-Count Oxenstierna (ca 1620) to the young King Gustavus Adolphus

"People sleep peacefully in their beds at night only because rough 
men stand ready to do violence on their behalf."
-George Orwell

"When a true genius appears in the world you may know him by this sign: that
all the dunces are in confederacy against him."   -Jonathan Swift

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