Variability-Speed-Consumption Trade-off in Near Threshold Operation

Abstract : Sub-threshold operation is an efficient solution for ultra low power applications. However, it is very sensitive to process variability which can impact the robustness and effective performance of the circuit. On the other hand this sensitivity decreases as we move towards near-threshold operation. In this paper, the impact of variability on sub-threshold and near-threshold circuit performance is investigated through analytical modeling and circuit simulation in a 65 nm industrial low power CMOS process. We show that variability moves the effective minimum energy point towards the near threshold region. Thus, we demonstrate that when variability is taken into account, a complete model that includes the near threshold (moderate inversion) region is necessary in order to correctly model circuit performance around the minimum energy point. Finally, we present the resulting speed-consumption trade-off in a variability-aware analysis of sub-threshold and near-threshold operation.
Type de document :
Communication dans un congrès
Springer Berlin / Heidelberg. PATMOS 2011, Sep 2011, Madrid, Spain. 6951, pp.308--316, 2011, Lecture Notes in Computer Science. 〈10.1007/978-3-642-24154-3_31〉
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-00629297
Contributeur : Philippe Matherat <>
Soumis le : mercredi 5 octobre 2011 - 15:15:31
Dernière modification le : jeudi 11 janvier 2018 - 06:23:38
Document(s) archivé(s) le : vendredi 6 janvier 2012 - 02:35:59

Fichier

vsctnto.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

Mariem Slimani, Fernando Silveira, Philippe Matherat. Variability-Speed-Consumption Trade-off in Near Threshold Operation. Springer Berlin / Heidelberg. PATMOS 2011, Sep 2011, Madrid, Spain. 6951, pp.308--316, 2011, Lecture Notes in Computer Science. 〈10.1007/978-3-642-24154-3_31〉. 〈hal-00629297〉

Partager

Métriques

Consultations de la notice

343

Téléchargements de fichiers

223