I always hoped someone would take my design, do it on a larger format,
add dual parts (DIP and SMT) for the DACs, and make it more buildable.
However, the DIP parts are considerably more expensive. DAC8420's are
$45 each at Digikey. The TI7714UB is $18 at Digikey, so that is $54
savings by using the SMT. I believe the target for the AD5726 is
something in the $8 range for ~$74 savings. That's sure worth a try
to solder SMT.
Remember, the pitch on this SMT part is only half that of a DIP - 0.
050". If you can hold your hand steady, see it, and have a fine tip
soldering iron, then it is quite doable. If you bridge (I have just
once), solder wick cleans it right up.
Dave
--- In
ComputerVoltageSources@yahoogroups.com, "Samppa Tolvanen"
<samppa.tolvanen@...> wrote:
>
> Hi,
>
> On 8/2/07, Eric Brombaugh <ebrombaugh@...> wrote:
> >
> >
> > I assume that the proprietary SW you're talking about
> > is the BasicATOM development environment and
> > interpreter?
> >
>
> Ah, no: Using ExpressPCB - Design is tied to their service, which
> means, for gerbers (ect.) layout has to be done again with some
other
> software.
>
> The layout itself is good - thanks Dave! It might not be suitable
for
> the first project to build, but it's not that complicated, SMTs are
> reasonable and lots of repetitive stuff in input buffers.
>
> CVS has a good backing with existing PSIM software - and there isn't
> really an alternative, it would have to be created.
>
> Samppa
>