Technologies for Ultradynamic Voltage Scaling

A.P. Chandrakasan, D.C. Daly, D.F. Finchelstein, J. Kwong, Y.K. Ramadass, M.E. Sinangil, V. Sze, N. Verma
2010 Proceedings of the IEEE  
Circuits such as logic cells, static random access memories, analog-digital converters and dc-dc converters can be used as building blocks for applications that can function efficiently over a wide range of supply voltages. ABSTRACT | Energy efficiency of electronic circuits is a critical concern in a wide range of applications from mobile multimedia to biomedical monitoring. An added challenge is that many of these applications have dynamic workloads. To reduce the energy consumption under
more » ... e variable computation requirements, the underlying circuits must function efficiently over a wide range of supply voltages. This paper presents voltage-scalable circuits such as logic cells, SRAMs, ADCs, and dc-dc converters. Using these circuits as building blocks, two different applications are highlighted. First, we describe an H.264/AVC video decoder that efficiently scales between QCIF and 1080p resolutions, using a supply voltage varying from 0.5 V to 0.85 V. Second, we describe a 0.3 V 16-bit microcontroller with on-chip SRAM, where the supply voltage is generated efficiently by an integrated dc-dc converter. Fig. 5. Trend in minimum energy point of a 32 b adder with process scaling using predictive models [31].
doi:10.1109/jproc.2009.2033621 fatcat:ehsup4tsbfa67ccdre7wvt26yq