Re: [CAD_CAM_EDM_DRO] EMC and lathes?

kabowers@... wrote:

>
> The test circuit on the datasheet isn't exactly complete.

There is also a sheet for the reference design board that has a
complete, 3-page
schematic, although it just has buttons for the reset function.

> Minimal
> information on the opamp. IIRC the early datasheets on the family
> omitted current/power dissipation completely.
> Thanks for the head sup on the reset.I was expecting to have to fiddle
> with the resistor values. I had noticed the reset was a bit unusual,
> but had missed the three step part. At lease I haven't etched a board yet.
> I REALLY wish that family was available in DIP packages. Homebrewing
> boards for 44-LQFP footprint is a strain and I don't have the equipment
> to remove them if I goof 8=(
>

The small LQFPs aren't that bad, although it GREATLY helps to have a
stereo zoom
microscope with a long working distance. I'd be blind by now without that!
I do chips down to 0.4mm lead pitch, those are a bear. But, you can do
it with one
of those jeweler's hoods, solder wick and a small soldering iron. Soon,
the DIP and other
large packages will be a thing of the past. Most newer chips are not
made in DIP, and now
even standard-size SO is being phased out.

Jon