REF10 pdf datasheet (Precision

The REF10 is a precision voltage reference which
provides a +10.00V output. The drift is laser-trimmed
to 1ppm/°C max (KM grade) over the full specification
range. This is in contrast to some references
which guarantee drift over a limited portion of their
specification temperature range. The REF10 achieves
its precision without a heater. This results in low
quiescent current, fast warm-up, excellent stability,
and low noise.
The output can be adjusted with minimal effect on
drift or stability. Single supply operation over 13.5V
to 35V supply range and excellent overall specifications
make the REF10 an ideal choice for the most
demanding applications such as precision system standard,
D/A and A/D references, transducer excitation,
etc.