[Laser] daytime receiver

[KY1K]

I did manage to find a repository of old Burr-Brown ap notes with some 
creative and detailed google searches.

After a long search, I did locate Burr-Brown's AB-061.pdf, which is titled 
"OPT201 PHOTODIODE-AMPLIFIER REJECTS AMBIENT LIGHT". It is a much more 
complete description of how to use a second op amp to cancel ambient light 
levels without seriously dumbing down the sensitivity of the receiver.

It stops short of claiming "daylight operation" but the basic design 
concept and formulas are given in more detail than the description in the 
opt-301 (and other Burr-Brown) integrated photodiode receiver chips datasheets.

I'll gladly send it to anyone who would like a copy.

Keep 'dem lasers lit.

Art


t 08:57 PM 10/13/2004, you wrote:
>you can find all the BB OPT datasheets at:
>www.qsl.net/wb9ajz/laser/data
>Figure 12 in the OPT301 datasheet is what you are looking for.
>
>Jim
>N9JIM/6