Another cirquit that was not mentioned up to now is the EDN Cirquit
http://edn.com/design/other/4326640/DC-accurate-32-bit-DAC-achieves-32-bit-resolution
The advantage is relative low effort and fast settling time. (for a PWM
solution)
Although you have to tweak the cirquit to get a fair linearity of around
2-3 ppm.
(The values in the article seem to be very optimistic to me).
Also the noise behaviour of my setup is not as good as would be a dual
dac version.
With best regards
Andreas
Am 08.01.2014 09:25, schrieb Jan Fredriksson:
I'm thinking of using a PWM divider for voltage generation of adjustable DC
voltages from a voltage reference.
Does anyone have any pointers to circuits, solutions, topologies, error
analysis etc. for such solutions?
Jan
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