Hi Lukas, After re-reading your post, I think the issue is that you are strictly using a DMM, which may move the DAC output out of compliance. What we would recommend is an SMU, source meter unit, 4wire, this can hold the voltage or current, while taking a measurement at the same time. Something like a Keithly Model 2400 would do here. www.tek.com/.../2400-standard-series-sourcemeter Regards, Rob
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