Analog-to-stochastic converter using magnetic-tunnel junction devices

Naoya Onizawa, Daisaku Katagiri, Warren J. Gross, Takahiro Hanyu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

19 Citations (Scopus)

Abstract

This paper introduces an analog-to-stochastic converter using a magnetic-tunnel junction (MTJ) device for stochastic computation. Stochastic computation has recently been exploited for area-efficient hardware implementation, such as low-density parity-check (LDPC) decoders and image processors. However, power-and-area hungry analog-to-digital and digital-to-stochastic converters are required for the analog to stochastic signal conversion. The MTJ devices exhibit probabilistic switching behaviour between two resistance states. Exploiting the probabilistic behaviour, analog signals can be directly converted to stochastic signals to mitigate the signal-conversion overhead. The analog-to-stochastic signal conversion is mathematically described and the conversion circuit is designed based on a transistor/MTJ hybrid structure. The conversion characteristic is evaluated using device and circuit parameters that determines proper parameters for designing the analog-to-stochastic con-verter.

Original languageEnglish
Title of host publicationProceedings of the 2014 IEEE/ACM International Symposium on Nanoscale Architectures, NANOARCH 2014
PublisherIEEE Computer Society
Pages59-64
Number of pages6
ISBN (Print)9781479963836
DOIs
Publication statusPublished - 2014 Jan 1
Event2014 IEEE/ACM International Symposium on Nanoscale Architectures, NANOARCH 2014 - Paris, France
Duration: 2014 Jul 82014 Jul 10

Publication series

NameProceedings of the 2014 IEEE/ACM International Symposium on Nanoscale Architectures, NANOARCH 2014

Other

Other2014 IEEE/ACM International Symposium on Nanoscale Architectures, NANOARCH 2014
Country/TerritoryFrance
CityParis
Period14/7/814/7/10

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Analog-to-stochastic converter using magnetic-tunnel junction devices'. Together they form a unique fingerprint.

Cite this