A memristor-based pixel implementing light-to-resistance conversion

Olufemi A. Olumodeji; Alessandro  P. Bramanti; Massimo Gottardi; Salvatore Iannotta

doi:10.1117/1.OE.55.2.020501

8 February 2016 A memristor-based pixel implementing light-to-resistance conversion

Olufemi A. Olumodeji, Alessandro P. Bramanti, Massimo Gottardi, Salvatore Iannotta

Author Affiliations +

Optical Engineering, Vol. 55, Issue 2, 020501 (February 2016). https://doi.org/10.1117/1.OE.55.2.020501

Abstract

This letter reports a pixel architecture that implements a light-to-resistance encoder exploiting the properties of a memristor. A light-to-frequency (L2F) converter is adopted to drive a memristor with pulses, thus changing its resistance according with the light intensity. In a conventional L2F implementation, a binary counter is needed to store the number of pulses generated within the exposure time (T_i). In the proposed circuit, the binary counter has been replaced with an analog counterpart, made of a single memristor. This turns into a smaller pixel pitch, compared with an all-CMOS solution and analog nonvolatile characteristics. The proposed circuit has been simulated in a 3.3 V, 0.35 μm CMOS process, while the memristor behavior relies on the HP model.

Citation Download Citation

Olufemi A. Olumodeji, Alessandro P. Bramanti, Massimo Gottardi, and Salvatore Iannotta "A memristor-based pixel implementing light-to-resistance conversion," Optical Engineering 55(2), 020501 (8 February 2016). https://doi.org/10.1117/1.OE.55.2.020501

Published: 8 February 2016

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available