An energy efficient sub-threshold to above-threshold level shifter using a modified Wilson current mirror

摘要

In this article, a new energy efficient level shifter circuit is described for robust sub-threshold to above-threshold voltage conversion. The design is based on a modification of the Wilson current mirror that minimizes the static current and improves the energy efficiency. The proposed level shifter is capable of converting a 200mV signal into a 1V signal and operates correctly across process corners. At the design target (