A single-supply sub-threshold level shifter with an internal supply feedback loop for multi-voltage applications

IEICE Electronics Express

Zibin Dai¹  Xiaoyang Zeng¹  Zhouchuang Wang¹  Longmei Nan²  Wei Li² 

[1] Institute of Information Science and Technology;State Key Laboratory of ASIC and System, Fudan University

关键词: single-supply level shifter;    dual-supply LS;    ultra-low power;    multi-threshold;    sub-threshold;   

DOI  :  10.1587/elex.15.20180078

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

A single-supply level shifter with an internal supply feedback loop, which can shift an input signal from the sub-threshold level to the above-threshold level, is presented in this paper. This level shifter has a wider voltage conversion, less transmission delay, higher energy efficiency, and more flexibility in the physical layout than those described in previous citations. The proposed level shifter can convert a 210-mV input signal into a 1.2-V output signal across process corners with a flexible physical layout when implemented in 65-nm LP technology. For a voltage of 0.2 V, the circuit has a propagation delay of 19.4 ns, a static power dissipation of 1.84 nW, and an energy consumption per transition of 82.2 fJ for a 1-MHz input signal. Due to these excellent characteristics, the proposed design is particularly suitable for applications in multi-voltage digital systems.

【 授权许可】

CC BY