A Subthreshold Digital Library Using a Dynamic-Threshold Metal-Oxide Semiconductor (DTMOS) and Transmission Gate Logic

Abstract

A digital library taking advantage of the subthreshold mode of operation is studied and different gate topologies are explored for trade-offs in area, power, and propagation delay. Lowering the supply voltage allows for significant reductions in power consumption due to the squared dependence on voltage in switching logic. Dynamic-threshold metal-oxide semiconductor (DTMOS) inverters were used to improve the speed of inverters and buffers. Transmission gate logic was used to implement arbitrary logic gates to avoid PUN/PDN imbalances of static logic gates in subthreshold. These modifications result in the added benefit of smaller and simpler implementation of XOR/XNOR, making for a more modular nature to implement the common logic gates. The library is used to implement 1-bit full adders and a CIC filter with low power consumption.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2014
Accession Number
ADA608589

Entities

People

  • Robert M. Proie
  • Timothy C. Lee

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Circuits
  • Complementary Metal-Oxide Semiconductors
  • Electronics
  • Electronics Laboratories
  • Energy Consumption
  • Integrated Circuits
  • Inverters
  • Logic
  • Logic Gates
  • Metal Oxide Semiconductors
  • Metal Oxides
  • Oxides
  • Power Electronics
  • Semiconductors
  • Topology

Readers

  • Computer Programming and Software Development.
  • Electrical Engineering
  • Parallel and Distributed Computing.

Technology Areas

  • Microelectronics