[volt-nuts] PWM voltage divider
phk at phk.freebsd.dk
Wed Jan 8 04:32:58 EST 2014
In message <BBC0C14A893B4B5E8E434E94845E4FC1 at athlon>, "Ulrich Bangert" writes:
>I have used AVR Megas
>with software Sigma Delta DACs and precision analogue multiplexers to switch
>between the reference and GND up to 20 bits of resolution. Worked fine!
Once you get into that territory, the HP Journal articles on the
HP3458A ADC is mandatory reading: The exact same issues are relevant
for a DAC.
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
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