Anyone have experience using voltage reference IC AD586?

[flat5]

I built the simple circuit but the output is 5.46 volts. Not 5 volts.
Three meters concur.
Circuit is SO simple I can't see that I've done something wrong.

Using a bench supply at 12 volts.
Added the 1uf low noise cap but not the trim pot.
Built on a perf board and the IC was socketed as the last step.

 

[crutschow]

What circuit?

 

[flat5]

AD586.png

 

[crutschow]

It should work.
Have you double checked the pinouts and wiring?
Can you post a picture of the wiring?

 

[JimB]

The Output, Trim and GND pins are adjacent to each other.
Could it be that there is a blob of flux or whatever, bridging the pins and affecting the output?

Otherwise, there is not much to go wrong with that circuit!

JimB

 

[flat5]

I'm m bare assed
I did not see the shorts until faced with the full screen pic.
I should know better! Always check with lots of light & a magnifier!
Very bad solder work - and with a new solder station!
(I was doing the work at 3am)
I just got some .3mm solder and will start using it.
I believe I've applied too much solder.
Also I think I should have cleaned the board before soldering.
The solder might have flowed better and I would not have used so much.
It's all cleaned up now (relatively speaking).
trace short.jpg
5v reference.jpg

 

[flat5]

Using most of my DMMs the reference reads at the banana jacks using cheap probes

4.998
4.96
4.96
4.98
4.98
5.05
5.00

Average is 4.9897142 volts
So I don't know what to believe

 

[KeepItSimpleStupid]

In reality, the first number is 5.00 to three sig figs. recomputed, the average is 4.99 to three sig figs. Accuracy is another issue, because that might be +-1 digit.

The probes generally won't make a difference. Depending on the grade you have 4.980 to 5.020 V for the J device.

Remember that accuracy and resolution are different.
So, if your meter is +-1 mV and +1 digit, you have to treat it accordingly.

 

[flat5]

Thank you, KISS. I forgot about all that. I'll read a wiki or something.
Even with my data if averaged to three digits it is 4.99.
It is indeed AD586JN High Precision 5V Ref. from Futurlec.