English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/195699
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Calibration of offset via bulk for Low-power HfO2 based 1T1R memristive crossbar Read-Out System

AuthorsMohan, C.; Camuñas-Mesa, L. ; Vianello, E.; Periniolla, L.; Reita, C.; Rosa, José M. de la ; Serrano-Gotarredona, Teresa ; Linares-Barranco, Bernabé
KeywordsMemristor
Crossbar
Nano-CMOS
Neuromorphic
Calibration
Issue Date15-Oct-2018
PublisherElsevier
CitationMicroelectronic Engineering 198: 35-47 (2018)
AbstractNeuromorphic RRAM circuits typically need currents of several mA when many binary memristive devices are activated at the same time. This is due to the low resistance state of these devices, which increases the power consumption and limits the scalability. To overcome this limitation, it is vital to investigate how to minimize the amplitude of the read-out inference pulses sent through the crossbar lines. However, the amplitude of such inference voltage pulses will become limited by the offset voltage of read-out circuits. This paper presents a three-stage calibration circuit to compensate for offset voltage in the wordlines of a memristor-array read-out system. The proposed calibration scheme is based on adjusting the bulk voltage of one of the input differential pair MOSFETs by means of a switchable cascade of resistor ladders. This renders the possibility to obtain calibration voltage steps less than 0.1 mV by cascading a few number of stages, whose results are only limited by mismatch, temperature, electrical noise and other fabrication defects. The system is built using HfO2-based binary memristive synaptic devices on top of a 130-nm CMOS technology. Layout-extracted simulations considering technology corners, PVT variations and electrical noise are shown to validate the presented calibration scheme.
Publisher version (URL)https://doi.org/10.1016/j.mee.2018.06.011
URIhttp://hdl.handle.net/10261/195699
DOI10.1016/j.mee.2018.06.011
ISSN0167-9317
Appears in Collections:(IMSE-CNM) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.