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Biomedical and space applications require both reduced power consumption — extending the life of the battery — as well as reliable operation in harsh conditions particularly in the context of radiation or noise sources. A common approach for reducing power is to lower the supply voltage to the subthreshold regime (Vdd < Vth). However, subthreshold operation also results in an increased vulnerability...
The behavior of emerging wireless sensor networks is often characterized by short bursts of computation and communication followed by long periods of inactivity. As the unit devices are typically powered by batteries, conservation of energy - particularly during idle time - is paramount. Subthreshold logic has been proposed for providing lower energy per operation than traditional CMOS, but does so...
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