[sdiy] Temperature Compensated Exponential Converter Using SSM2164

[John Mahoney]

At 05:41 PM 8/29/2009, Ian Fritz wrote:

>The question is how *accurate* is the conformance over the 5 
>decades.  1%?  5%? ...
>
>IOW, what does "good conformance" mean, exactly.

Ian,
Is your Dial-a-Tempco circuit [still] your preferred means of 
temperature compensation?

I don't understand how to translate the specified 50ppm/K accuracy 
into a percentage, though. 50ppm is 1/200 of a percent, but how do 
the degrees K factor in? Am I mixing apples and oranges?

John (rather clueless, here)