2,5V @ 20ppm voltage reference

[fjpompeo]

lm341a

Is it possible to get a 2,5V with 20ppm voltage reference using LM341A IC?
If not what should I use instead?

Regards,

Fernando

 

[IanP]

what is the ref3125

Did you think of LM431A (LM341A?)?
https://www.fairchildsemi.com/ds/LM/LM431A.pdf
With its reference input connected to output it ill generate 2.5V voltage but it is 50ppm/°C IC ..

Regards,
IanP

 

[VVV]

A 20 ppm reference is going to be a little more expensive than the regular 50 ppm ones.

I recommend
TI's REF3125: http://focus.ti.com/docs/prod/folders/print/ref3125.html

Maxim: MAX6033, MAX6035, or others: **broken link removed**

Analog Devices: AD680, ADR03 or others: www.analog.com/dynamic/parametric/scResultsDisplay.asp?SearchType=PSS&ProductLine=REF

Linear Technology: LT1460 www.analog.com/dynamic/parametric/scResultsDisplay.asp?SearchType=PSS&ProductLine=REF

Intersil ISL60002DIH325, or others www.intersil.com/products/deviceresults.asp?i=14925