[sdiy] Temperature Compensated Exponential Converter Using SSM2164

[Ian Fritz]

At 10:06 AM 9/8/2009, David G. Dixon wrote:
>Let's face it: unless you're some kind of 'accuracy fetishist', the
>references are only really necessary at critical points, such as the tempco
>voltage for the expo we've been discussing, and perhaps for certain
>operations like precision wave shaping, where it might ease or eliminate a
>trim.

I always use subregulation for freq controls and for reset trip points in 
VCO cores (as examples). Maybe it is a fettish, but to me it doesn't make 
sense to only fix some sources of error and drift.

Ian