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Variation Resilient Adaptive Controller for Subthreshold Circuits

Mishra, B, Al-Hashimi, Bashir and Zwolinski, Mark (2009) Variation Resilient Adaptive Controller for Subthreshold Circuits At DATE, 2009, France. 20 - 24 Apr 2009.

Record type: Conference or Workshop Item (Paper)


Subthreshold logic is showing good promise as a viable ultra-low-power circuit design technique for power-limited applications. For this design technique to gain widespread adoption, one of the most pressing concerns is how to improve the robustness of subthreshold logic to process and temperature variations. We propose a variation resilient adaptive controller for subthreshold circuits with the following novel features: new sensor based on time-to-digital converter for capturing the variations accurately as digital signatures, and an all-digital DC-DC converter incorporating the sensor capable of generating an operating operating Vdd from 0V to 1.2V with a resolution of 18.75mV, suitable for subthreshold circuit operation. The benefits of the proposed controller is reflected with energy improvement of upto 55% compared to when no controller is employed. The detailed implementation and validation of the proposed controller is discussed.

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Submitted date: 20 April 2009
Additional Information: Event Dates: 20-24 April, 2009
Venue - Dates: DATE, 2009, France, 2009-04-20 - 2009-04-24
Organisations: Electronic & Software Systems, EEE


Local EPrints ID: 266720
PURE UUID: 53e4aacf-11e9-4997-abc6-0bfa13da43f8
ORCID for Mark Zwolinski: ORCID iD

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Date deposited: 26 Sep 2008 21:20
Last modified: 18 Jul 2017 07:13

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Author: B Mishra
Author: Mark Zwolinski ORCID iD

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