신현철
2018-04-13T00:37:28Z
2018-04-13T00:37:28Z
2016-07
INTERNATIONAL JOURNAL OF ELECTRONICS, v. 103, No. 7, Page. 1216-1227
0020-7217
1362-3060
https://www.tandfonline.com/doi/abs/10.1080/00207217.2015.1092596
http://hdl.handle.net/20.500.11754/65747
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 ( [GRAPHICS] 200mV, input signal frequency=1MHz), the proposed level shifter exhibits a propagation delay of 20.17ns, a static power dissipation of 11.07nW, and the total energy per transition of 113.2fJ. We compare our results with the design proposed by Lutkemeier and Ruckert (2010). At the design target, the energy delay product of our design is 81.53% that of the reference design and, over all the voltage range of [GRAPHICS] from 160mV to 1V, the proposed circuit shows an average energy reduction of 14.71% compared to the reference design. Thorough variability analysis was performed using HSPICE Monte Carlo simulations for different values of [GRAPHICS] , which reveals the robustness of the proposed design.
The first and second authors are supported by the Higher Education Commission (HEC) of Pakistan under HRDI-UESTP scholarship.
en_US
TAYLOR & FRANCIS LTD
low-power
energy efficiency
modified Wilson current mirror
Level shifter
variability
sub-threshold
PROCESSOR
VARIABILITY
An energy efficient sub-threshold to above-threshold level shifter using a modified Wilson current mirror
Article
7
103
10.1080/00207217.2015.1092596
1216-1227
INTERNATIONAL JOURNAL OF ELECTRONICS
Maroof, N
Sohail, M
Shin, H
2016000257
E
COLLEGE OF ENGINEERING SCIENCES[E]
DIVISION OF ELECTRICAL ENGINEERING
shin