[sdiy] Mag sensor as a CV source

[Toby Paddock]

I've been playing with a linear hall effect sensor 
and a magnet on a string as a wobbly LFO.

More details than you care about and a cheesy 
sounding wav file are at the unlinked page:
http://www.seanet.com/~tpaddock/mag2cv.html


Allegro MicroSystems A3517LUA Ratiometric Linear Hall-Effect Monolithic Sensor. 
The 3517 uses a single 5V supply and the sensitivity is 5 mV/G (gauss). 
Package is a 3-pin "ultra-mini-SIP". 
Output with no mag field is about 1/2 supply voltage. Full scale is rail-rail.
Specs say it will source about 1 mA and sink 10 mA.

 - -- -  Toby Paddock
http://www.seanet.com/~tpaddock