Energy-minimum sub-threshold self-timed circuits using current-sensing completion detection

Akgun OC, Rodrigues JN, SparsØ J (2011)

Publication Type: Journal article

Publication year: 2011

Journal

IET Computers and Digital Techniques Institution of Engineering and Technology (IET)

Book Volume: 5

Pages Range: 342-353

Journal Issue: 4

DOI: 10.1049/iet-cdt.2010.0118

Abstract

This study addresses the design of self-timed energy-minimum circuits, operating in the sub-VT domain and a generic implementation template using bundled-data circuitry and current sensing completion detection (CSCD). Furthermore, a fully decoupled latch controller was developed, which integrates with the current-sensing circuitry. Different configurations that utilise the proposed latch controller are highlighted. A contemporary synchronous electronic design automation tools-based design flow, which transforms a synchronous design into a corresponding self-timed circuit, is outlined. Different use cases of the CSCD system are examined. The design flow and the current-sensing technique are validated by the implementation of a self-timed version of a wavelet-based event detector for cardiac pacemaker applications in a standard 65 nm CMOS process. The chip was fabricated and verified to operate down to 250 mV. Spice simulations indicate a gain of 52.58% in throughput because of asynchronous operation. By trading the throughput improvement, energy dissipation is reduced by 16.8% at the energy-minimum supply voltage. © 2011 The Institution of Engineering and Technology.

Involved external institutions

Lund University / Lunds universitet SE Sweden (SE) Technical University of Denmark / Danmarks Tekniske Universitet (DTU) DK Denmark (DK)

How to cite

APA:

Akgun, O.C., Rodrigues, J.N., & SparsØ, J. (2011). Energy-minimum sub-threshold self-timed circuits using current-sensing completion detection. IET Computers and Digital Techniques, 5(4), 342-353. https://doi.org/10.1049/iet-cdt.2010.0118

MLA:

Akgun, O. C., J. N. Rodrigues, and J. SparsØ. "Energy-minimum sub-threshold self-timed circuits using current-sensing completion detection." IET Computers and Digital Techniques 5.4 (2011): 342-353.

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