Hi All, I'm working on something that requires a stable voltage reference. Long term stability isn't needed, but good thermal stability is. In other words it would be nice to have sub ppm/C temperature, but a few ppm/month or even per day isn't an issue.
Anyway, it got me thinking about building a reference for fun, with some of the newer IC's available, but doing so in an ovenized housing. I know the LM399's and LTZ1000's are out there, but has anyone looked at any of the newer IC's out there? For example this one seems to have pretty good ppm/C drift: http://www.digikey.com/product-detail/en/VRE3025JS/598-1916-ND/2036526 However it's not cheap. And this one looks pretty good for the sub $10 price. http://www.digikey.com/product-detail/en/ADR4550BRZ/ADR4550BRZ-ND/3196874 This is the one I was thinking about parking in an oven. It has a turnover around 70C. Has anyone played with inexpensive reference chips, and tried to make a good reference out of them? Any thoughts or comments welcome! Dan _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
