Which PCB to base LTZ1000 build on?

[aronake]

Hi all electronics superstars!

I have been reading though lots of info about LTZ1000. There are numerous PCBs used.

I plan to build a LTZ1000 reference. Of main importance is the 7V direct output. If the circuit also can output 10V thats not really needed but could be nice too.

Intend use is as a learning project, to see how multimeters drift over time and look into low noise measurement set-ups. Something with a balance that score reasonably well in all areas of low noise, low temperature coefficient and low long term drift.

Targeted budget around 200 to 300 USD.

Which of all PCBs out there would you recommend to make the build on? Preferably a PCB that can either be ordered ready made or for which gerber files can be found.

[Oldtestgear]

I used the 3458a reference board design recently. Worked well for my purpose & readily available from OSHPARK in the USA. There are plenty of options to choose from.
 It is useful to decide what your intended application is before buying the (very) expensive resistors intended for this design. It may well be possible to use lower spec. resistors if the operating temperature is restricted to a few degrees around a set point.  It will not be "perfect" but could do the job. Others will probably disagree with this comment.  I may decide that it is total rubbish after I have done a lot more testing & built one or two more.

It may be worth asking ADI for samples of the LTZ1000. They were quite willing to sample me.

Cheers

Phil