AD584 voltage reference

Hi Dan

AD584K datasheet 15ppm/°C +-10% $12:

Please look at:

LT1019A 5ppm/°C ±0.05% 5V (also 2.5V, 4.5V, 10V versions):

/Glenn

"El Cheapo":

TL1431ACZT typ 13ppm max. 90ppm 0.25% $0.6 (variable 2.5...36V):

/Glenn

1/f noise which was the paramount problem in our application. We found running it off lowered voltage helped, too, we give it about 4 V. Then, we buffered it with an AD706, which had the lowest guaranteed 1/f spec we could find, TESTED at .001 Hz.

Jon

23PBF-ND/889569

Yes but the voltage references on Ebay claim to be using the AD594L which h as a tighter tolerance than the AD584K. Plus it comes packaged in a small box with a lithium battery , a switch to select the voltage and LEDs that shows which voltage is selected.

Dan

There was a mention of them a couple days ago on the tekscopes yahoo group.

--
Anyone wanting to run for any political office in the US should have to 
have a DD214, and a honorable discharge.

Thanks for letting me know they were mentioned on Tekscopes. It took a few days to get joined to the group. The guy that bought one was pleased with it. And it came with info an the actual voltages it put out. Just not su re I trust the report as accurate.

More stumbling around found a reference to taobao.com and a site that had t he voltage reference for $12. Has anyone used taobao.com?

Dan

This guy seems to be the real deal:

I believe he's the same gent I've seen on eBay for years running, selling this and similar items.

--
Cheers, 
James Arthur

Hi Jon and others

Found another reasonably priced reference. I have not compared 1/f noise level to LM4140+AD706:

Three different grades; both DIL, SMD; REF102A, REF102B, REF102C.

REF102C +-2.5mV, max drift +-2.5 ppm/°C, 1.4mA, "series regulator":

10V Precision Voltage Reference:

/Glenn