SSM2210 datasheets?

[Magnus Danielson]

>>>>> "EaSED" == Eric at Svetlana Electron Devices <svetengr at earthlink.net> writes:

 >> I pulled out my PMI databook that has the SSM2210 datasheet. It is
 >> nothing else than a pair of matched transistors and it requires just
 >> the same support cursuit as MAT-02 to become an log-antilog converter.
 >> It also requires an tempco resistor (the logarithmic amplifier example
 >> lists a Tel Labs Q81E resistor with +0.35%/C).
 >> It could be that Analog Devices discontiued it since they found
 >> themselfs with too many similar products.

 EaSED> Also possibly because Tel Labs is out of business, and other firms
 EaSED> don't make that value of thermistor? (I THINK Tel is out of business....
 EaSED> so I've heard in the past...)

I have found some traces of Tel Labs, but not gone any further.

However, I have found a company that does similar tempcos and
precission resistors. I have been thinking of doing a more systematic
search and sum it up on a webpage or a few. Would this be helpfull for
anyone?

I think that the same problem that we see on resistors we have for
pot's, capacitors and it's like. No real structure to find them, for
semiconductors it's a diffrent deal...

Eric, do you experience the same trouble with your glas fet's? ;)

Finding these more obscure components isn't a streamlined process at all.
It's easy to find crap, right?

Cheers,
Magnus