DAC resolution / availability

[Paul Perry]

At 12:47 PM 17/03/99 +0000, jbv.silences wrote:

>The cheapest solution is to design your own DAC with a simple R network and an
>op-amp.
>This way, you can have as many bits as you want in input.
>Of course, it should take slightly more space on your PCB than a dedicated DAC
>chip...
>
I dont think this is the cheapest way to make a DAC, if you need 12 bit
accuracy, 
or even 8.... think about the precision resistors you would need.... unless
you have
laser trimming facilities at home...

paul perry melbourne australia