Connecting several LT1460 in series to get high voltages

What are you looking to do with the 80V reference?

Stacking references like this might create a large output voltage, but all of the errors (initial accuracy, temperature coefficient, etc.) would also stack, never mind the added complexity of the setup (separate supply voltages for each reference, etc.)

Using the LT1460 with an op amp in a gain config of 8 would likely be more practical.

I agree with emoon probably better to gain up one reference. The errors would RSS, which is a good thing, but when you stack references, each one has to act like a shunt reference and sink current, which is not the best capability for LT1460. While they can sink some current, load regulation while sinking is not specified.

Thank you, emoon. It's a good point that all errors will add up, although I do not need as much accuracy and precision as in a single reference.