World’s smallest atomic clock on sale

Sandia National Laboratories
May 2, 2011

A matchbook-sized atomic clock 100 times smaller than its commercial predecessors has been created by a team of researchers at Symmetricom Inc. Draper Laboratory and Sandia National Laboratories.

The portable Chip Scale Atomic Clock (CSAC) — only about 1.5 inches on a side and less than a half-inch in depth — also requires 100 times less power than its predecessors. Instead of 10 watts, it uses only 100 milliwatts.

“It’s the difference between lugging around a device powered by a car battery and one powered by two AA batteries,” said Sandia lead investigator Darwin Serkland.
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