Dave tests the AD8436 True RMS converter chips inside the 121GW multimeter to see if it works well below it's voltage rail specification.
Bonus thermal testing in the chamber.
http://www.analog.com/media/en/technical-documentation/data-sheets/AD8436.pdf
Forum: http://www.eevblog.com/forum/blog/eevblog-972-operating-chips-outside-their-spec/
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