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Unread 04-20-2005, 12:15 AM   #3
KnightElite
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Join Date: Sep 2002
Location: Saskatoon, Saskatchewan
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I agree, get all the datasheets.

The project seems moderately complicated, but not overly difficult. I'll check back and take a look again later once you have posted the PDFs and suchlike, but all of the individual circuits should be fairly easy. You are taking some kind of EE classes in university I take it?

Anyway, many of the simple circuits required, such as a linearization circuit, will be explained in the datasheet for the IC you are using. Depending on what kind of photodector you are using (or have to use), you may be able to find one that matches all your needs in a single chip. If not, most of them are photodiodes, so the amount of light they receive adjusts the current they transmit through. By running this current accross a resistor, and measuring the voltage drop, you can get your 0-5V output.
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