[Laser] Fwd: Photo diode/pin diode detector needed

Sat, 10 May 2003 12:07:53 -0400

I normally don't comment on these messages, but this on has inspired me.

While the PGP front end is a fine design and performs as well as any other 
discreet front end, I see little use for the design unless one has all/most 
of the parts in their junkbox already!

While considering the PGP front end, I hope you will all consider the 
Burr-Brown opt-101a integrated solution. It is a very low noise amp and 
medium area photodiode (.09 inch by .09 inch active area) that peaks at 850 
nm. It has a built in 1 meg ohm feedback resistor, which gives 14khz 
bandwidth and is usable with other resistors to archive bandwidths as 
narrow as 2 hz. It comes in a t-05 package hermetically sealed package, 
which is shielded and is nearly turn key. Add +/- power supplies (150 ua) 
and you're off and running with known sensitivity and bandwidth!

Yes, they are pricey.....at around $16 dollars each. But, when compared to 
the time involved in assembly of the pgp front end, I think the money spent 
for the burr-brown chip is well worth the cost and it makes for a nice 
small and compact receiver, which adds to portability of the station.

If $16 is too much money to spend for a laser receiver chip, please 
consider buying them on ebay. They have been showing up there for 3/$10. 
(starting prices) and most of the auctions have closed for less than $12.

2522278992
2524142050

Above are 2 previous actions that have ended.

Below is the current auction, which will end in 3 days.

2529354692

I'll email a spec sheet to anyone who doesn't have it. Email me OFF LIST 
please.

Regards,

Art

At 05:06 PM 5/7/03 -0400, you wrote:
>I'm forwarding this for a friend of mine.  I looks like mouser cut it's 
>Clairex line.  Any ideas?  He's looking for a good low-noise PIN diode to 
>use with the PGP front end.  Please respond to Todd directly, but maybe CC 
>to the list since I'm sure he's not the only one looking for such a device.
>
>Andy K0SM/2
>
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>Date: Wed, 7 May 2003 16:54:46 -0400
>Subject: [RVHFG] Photo diode/pin diode detector needed
>Reply-To: "Todd Donath" <[email protected]>
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>
>
>I am in need of a detector diode for laser reciever. K0SM told me about the
>CLD-142. Well I got bad news from Mouser.
>Todd,
>
>Thank you for your order.  The part # 621-CLD142 is not longer being stocked
>by Mouser.
>
>Any other suppliers where I can get a detector? I want at least 3 if I can
>get them.
>
>Todd
>
>
>
>
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