Nothing major here, just boxing some kit's/modules with AD584 and AD586 voltage references, enough for quick check of multimeters or any project needing a voltage reference.
The AD586 is a fixed 5V output wiht +/- 2.5mv of accuracy and the AD584 set to 10V with possibility of being change to 7.5, 5 and 2.5V with 5mv accuracy.
Connections are self explanatory, anyhow here's the AD586 with the metal lid covering the IC lifted:
And now the box calibrating the Range RE890G multimeter on the Volt range.
Itwas a guess work to find the correct trimmer since I could not get the tech manual for this multimeter:
Here assembled view from an older picture:
Checking another multimeter and my homemade milivoltmeter:
..more digits now:
Have a great day!