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'[PIC]using pic's 12 i/o and r2r net, as DAC'
part 1 169 bytes content-type:text/plain; (decoded quoted-printable)
I am thinking about: using pic's 12 i/o and r2r net, as DAC, with op as
is this way acceptible? any example?
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On 5 Jan 2006 at 22:43, microsoftwarecontrol wrote:
> I am thinking about:
> using pic's 12 i/o and r2r net, as DAC, with op as
> is this way acceptible? any example?
Do not expect 12 bit accuracy. A real 8 bit DAC will probably be
At 10:43 PM 1/5/2006 -0500, you wrote:
>I am thinking about:
>using pic's 12 i/o and r2r net, as DAC, with op as
>is this way acceptible? any example?
Yes, you can do this. With 0.1% resistors you can approach 11-12-bit accuracy
*typically*, but you'll need a decent buffer on the output. Don't expect it
to be monotonic.
Spehro Pefhany --"it's the network..." "The Journey is the reward"
interlog.com Info for manufacturers: speffhttp://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
->> Inexpensive test equipment & parts http://search.ebay.com/_W0QQsassZspeff
On 1/6/06, Spehro Pefhany <interlog.com> wrote: speff
> At 10:43 PM 1/5/2006 -0500, you wrote:
> >I am thinking about:
> >using pic's 12 i/o and r2r net, as DAC, with op as
Order a maxim <shiver> sample.. Good analog chips, sometimes sourcing
problems.. but for a one-off, just get a sample.. or get a microchip
Maybe he is more interested in the learning aspect? Building ladder networks
can be educational, after all.
I've got a homebrew VGA adapter built with an FPGA and 3 resistors for each
colour channel....works remarkably well.
On 1/8/06, andrew kelley <gmail.com> wrote: leetslacker
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