IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
A wide input voltage range level shifter circuit for extremely low-voltage digital LSIs
Yuji OsakiTetsuya HiroseNobutaka KurokiMasahiro Numa
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2011 Volume 8 Issue 12 Pages 890-896


In this paper, we propose a level shifter circuit capable of handling a wide input voltage range. The circuit is based on a conventional two-stage comparator, and has a distinctive feature in that it operates a current amplification scheme for ultra low-power operation. The proposed circuit can convert low-voltage input digital signals into high-voltage output digital signals. The circuit achieves low power dissipation because it dissipates operating current only when the input signals change. Measurement results demonstrated that the circuit can convert low voltage input signals of 0.4V into 3V output signals. The power dissipation was 0.15µW at 0.4-V and 10-kHz input pulse.

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© 2011 by The Institute of Electronics, Information and Communication Engineers
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