Lm348 is outdated. Its a quad 741 clone and has offset and gain bandwidth restrictions in the differential application.
TL082 is the minimum for laser signals these days and there are much better ones then the 082 out there.
In fact, you want something that can swing rail to rail, to keep the headroom down so you can use a inverter module and only need a wall wart for power.
Steve
Last edited by mixedgas; 07-04-2009 at 06:55.
Qui habet Christos, habet Vitam!
I should have rented the space under my name for advertising.
When I still could have...