DocumentCode
1947622
Title
Device sizing for minimum energy operation in subthreshold circuits
Author
Calhoun, Benton H. ; Wang, Alice ; Chandrakasan, Anantha
Author_Institution
Dept. of Electr. Eng., MIT, Cambridge, MA, USA
fYear
2004
fDate
3-6 Oct. 2004
Firstpage
95
Lastpage
98
Abstract
Digital circuits operating in the subthreshold region provide the minimum energy solution for applications with strict energy constraints. This paper examines the effect of sizing on energy for subthreshold circuits. We show that minimum sized devices are theoretically optimal for reducing energy. A fabricated 0.18 μm test chip is used to compare normal sizing and sizing for minimum VDD. Measurements show that existing standard cell libraries offer a good solution for minimizing energy in subthreshold circuits.
Keywords
CMOS logic circuits; integrated circuit design; leakage currents; low-power electronics; 0.18 micron; CMOS logic circuits; device sizing; digital circuits; energy constraints; energy minimization; leakage current; minimum energy operation; standard cell libraries; subthreshold circuits; Capacitance; Circuit testing; Energy consumption; Equations; Inverters; Leakage current; MOS devices; Propagation delay; Semiconductor device measurement; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Custom Integrated Circuits Conference, 2004. Proceedings of the IEEE 2004
Print_ISBN
0-7803-8495-4
Type
conf
DOI
10.1109/CICC.2004.1358745
Filename
1358745
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