中国物理B ›› 2013, Vol. 22 ›› Issue (8): 88501-088501.doi: 10.1088/1674-1056/22/8/088501

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

The design and simulation of a titanium oxide memristor-based programmable analog filter in a simulation program with integrated circuit emphasis

田晓波, 徐晖   

  1. Embedded System and Solid-State Engineering Technology Center, School of Electronic Science and Engineering,National University of Defense and Technology, Changsha 410073, China
  • 收稿日期:2012-10-31 修回日期:2012-12-22 出版日期:2013-06-27 发布日期:2013-06-27
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61171017 and F010505).

The design and simulation of a titanium oxide memristor-based programmable analog filter in a simulation program with integrated circuit emphasis

Tian Xiao-Bo (田晓波), Xu Hui (徐晖)   

  1. Embedded System and Solid-State Engineering Technology Center, School of Electronic Science and Engineering,National University of Defense and Technology, Changsha 410073, China
  • Received:2012-10-31 Revised:2012-12-22 Online:2013-06-27 Published:2013-06-27
  • Contact: Tian Xiao-Bo E-mail:txiaobo1985@gmail.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61171017 and F010505).

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摘要： In many communication and signal routing applications, it is desirable to have a programmable analog filter. According to this practical demand, we consider the titanium oxide memristor, which is a kind of nano-scale electron device with low power dissipation and nonvolatile memory. Such characteristics could be suitable for designing the desired filter. However, both the non-analytical relation between the memristance and the charges that pass through it, and the changeable V-I characteristics in physical tests make it difficult to accurately set the memristance to the target value. In this paper, the conductive mechanism of the memristor is analyzed, a method of continuously programming the memristance is proposed and simulated in a simulation program with integrated circuit emphasis, and its feasibility and compatibility, both in simulations and physical realizations, are demonstrated. This method is then utilized in a first-order active filter as an example to show its applications in programmable filters. This work also provides a practical tool for utilizing memristors as resistance programmable devices.

关键词: memristor, programmable filter, dopant drift, SPICE

Abstract: In many communication and signal routing applications, it is desirable to have a programmable analog filter. According to this practical demand, we consider the titanium oxide memristor, which is a kind of nano-scale electron device with low power dissipation and nonvolatile memory. Such characteristics could be suitable for designing the desired filter. However, both the non-analytical relation between the memristance and the charges that pass through it, and the changeable V-I characteristics in physical tests make it difficult to accurately set the memristance to the target value. In this paper, the conductive mechanism of the memristor is analyzed, a method of continuously programming the memristance is proposed and simulated in a simulation program with integrated circuit emphasis, and its feasibility and compatibility, both in simulations and physical realizations, are demonstrated. This method is then utilized in a first-order active filter as an example to show its applications in programmable filters. This work also provides a practical tool for utilizing memristors as resistance programmable devices.

Key words: memristor, programmable filter, dopant drift, SPICE

中图分类号:  (Nanoelectronic devices)

  • 85.35.-p
84.30.Vn (Filters) 87.85.Qr (Nanotechnologies-design) 89.20.Ff (Computer science and technology)