Yi-Shiang Lin
ABSTRACT
A static subthreshold to I/O voltage level shifter is proposed. The proposed circuit employs a diode-connected pull-up transistor stack and a feedback structure to alleviate the drive strength requirement on the pull-down transistors. The proposed level shifter achieves less than 6 FO4 inverter delay under process and temperature variation when converting the input from 300mV to 2.5V. Compared to a conventional DCVS design, the new design consumes 8 times less power and is 10% faster under room temperature.
- I. J. Chang, J.-J. Kim, and K. Roy. Robust level converter design for sub-threshold logic. IEEE ISLPED, pages 14--19, Oct 2006. Google Scholar
Digital Library
- S. Hanson et al. Performance and variability optimization strategies in a sub-200mV, 3.5pJ/inst, 11nW subthreshold processor. Symp. on VLSI circuits, pages 252--253, Jun 2007.Google ScholarCross Ref
- F. Ishihara, F. Sheikh, and B. Nikolic. Level conversion for dual-supply systems. IEEE Tran. on VLSI, 12:185--195, Feb 2004. Google ScholarDigital Library
- R. Puri et al. Pushing ASIC performance in a power envelope. DAC., pages 788--793, Jun 2003. Google ScholarDigital Library
- K. Usami et al. Automated low-power technique exploiting multiple supply voltages applied to a media processor. IEEE JSSC, 33:463--472, Mar 1998.Google ScholarCross Ref
- A. Wang and A. Chandrakasan. A 180mV FFT processor using subthreshold circuit techniques. IEEE ISSCC, pages 292--293, Feb 2004.Google ScholarCross Ref
- W.-T. Wang et al. Level shifters for high-speed 1V to 3.3V interfaces in a 0.13μm Cu-interconnection/low-k CMOS technology. Intl. Symp. VLSI Technology, system, and Applications, pages 307--310, Apr 2001.Google Scholar
- C.-C. Yu, W.-P. Wang, and B.-D. Liu. A new level converter for low-power applications. IEEE ISCAS, pages 113--116, May 2001.Google Scholar
- H. Zhang, V. George, and J. Rabaey. Low-swing on-chip signaling techniques: effectiveness and robustness. IEEE Tran. on VLSI, 33:264--272, Jun 2000. Google ScholarDigital Library
Index Terms
- Single stage static level shifter design for subthreshold to I/O voltage conversion
Recommendations
A subthreshold to above-threshold level shifter comprising a Wilson current mirror
In this brief, we propose a novel level shifter circuit that is capable of converting subthreshold to above-threshold signallevels. In contrast to other existing implementations, it does not require a static current flow and can therefore offer ...
High performance single supply CMOS 0.451V input to 1.1V output level up shifter
This paper presents the design of a single supply CMOS level up shifter for low voltage and low energy consumption. The proposed voltage level converter is implemented using low threshold voltage transistors in 65nm CMOS technology. The shifter circuit ...
A high accuracy CMOS subthreshold voltage reference with offset cancellation and thermal compensation
This paper presents a high accuracy CMOS subthreshold voltage reference without BJTs for the low-supply-voltage and low-power application. The low supply voltage and low power dissipation are achieved, by making MOSFETs work in the subthreshold region. ...
Comments