- Jan 1, 1970
Who says you can only use one DAC? Use one for coarse and another for
vernier. Oh, now I've dropped the bag'o tricks and spilled it out
That would be nice, if the coarse DAC would have ideal voltage steps.
While you could use four serial (UART) ports to generate 3 bit PWM
each and after filtering, sum the currents with 512:64:8:1 ratios, I
very much doubt that you would get a monotonic 12 bit response, not at
least without tweaking those resistors on a case by case basis.