[time-nuts] any unheated Vref better than LT1021-7 (at 7 ppm/khr typ.) ?

Mark Sims holrum at hotmail.com
Tue Jan 1 20:20:39 UTC 2013


Take a close look at the photos of Malones nice little voltage reference boards (http://www.voltagestandard.com/Home_Page_JO2U.html).   The voltage reference chip is mounted on an isolated peninsula of PC board material to help isolate it from stress due to environmental changes.
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If the humidity effect is strictly from mechanical stress on the die as the plastic encapsulant swells or shrinks, would a part in a metal can then be immune from this effect, even if it was non-hermetic? 		 	   		  


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