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Low-power level shifter for multi-supply voltage designs

Abstract:

In this brief, a new low-power level shifter (LS) is presented for robust logic voltage shifting from near/sub-threshold to above-threshold domain. The new circuit combines the multi-threshold CMOS technique along with novel topological modifications to guarantee a wide voltage conversion range with limited static power and total energy consumption. When implemented in a 90-nm technology process, the proposed design reliably converts 180-mV input signals into 1-V output signals, while maintaining operational frequencies above 1-MHz, also taking into account process-voltage-temperature variations. © 2004-2012 IEEE.