Poster Sessions

CAMTA 2017 poster sessions

Poster sessions will take place on Thursday, July 27 and Friday, July 28 at Biblioteca Central.

New technique for manufacturing memristive systems based on multiferroic oxides

Abstract
A new kind of memristor was developed taking advantage of the interaction between a ferroelectric and a conductive thin film. The design takes advantage of the voltage drop on a conduction channel to locally change the polarization of a ferroelectric film. This in turn alters the resistivity of the previously mentioned channel. The design was patented and then manufactured and characterized, verifying the development.

Lucas Neñer
Laboratorio de Resonancias Magneticas, Centro Atómico Bariloche

Martin Sirena
Laboratorio de Resonancias Magneticas, Centro Atómico Bariloche


Design and Layout of a 100 Msps, 6-bits Current-Steering DAC in 0.5 µm CMOS Technology

Abstract
In this work, a 6-bits current-steering digital-to-analog converter for telecommunications applications was designed, simulated and sent to fabrication in the On Semiconductor C5 process, which was accessible through MOSIS. The DAC was designed to provide differential output of 2 V peak and to operate at a symbol frequency of 100 MHz with an impendance load of 50Ω. The circuit layout size was 610µm x 470µm.

Gustavo Zoireff
Instituto Balseiro

Fabricio Alcalde Bessia
Instituto Balseiro

José Lipovetzky
Instituto Balseiro

Test of 3T Active Pixel Sensors as Ionizing Radiation Detectors in CMOS 0.5µm Technology

Abstract
This work presents the design of a test chip intended to measure the response against ionizing radiation of different flavors of 3T active pixel sensors. Each flavor is made with a different type of p-n junction from the ones available in an standard CMOS process, and also with different type of transistors. The pixel natural discharge rate was measured and also the response to 137Cs gamma rays.

Fabricio Alcalde Bessia
Instituto Balseiro, CONICET

José Lipovetzky
Low Temperature Lab, CAB, CNEA

Martín Perez
Instituto Balseiro, CONICET

Mariano Gomez Berisso
Instituto Balseiro


Band-Pass Biquadratic filter @10.7 MHz using transconductors

Abstract
In this document it is presented the design of a transconductance amplifier using a 90nm technology for its use in a Band- Pass Biquad filter of 6th order, this filter could be used in a receiver before an IF amplifier at 10.7MHz.

Emiliano Jose Alí
Instituto Universitario Aeronautico

Jorge David Peirone
Instituto Universitario Aeronautico


Floating-Point Precision Analysis For Inverse Kinematics Model Of Exoskeleton Implemented In FPGA

Abstract
A System on Chip (SoC) based on FPGA is proposed for the implementation of the control system of the exoskeleton of the right leg. Exoskeletons can be used for force augmentation, for user movement enhancement or for rehabilitation purposes. The proposed exoskeleton is designed to improve the movements for a person with movement disabilities in the right leg. A basic part of the design is the kinematics model consisting of the direct kinematics model which, given the joint configuration calculates the configuration of the end-effector, and the inverse kinematics model which, given the end-effector configuration calculates the joint configuration of the mechanical structure.

The kinematics model is designed in Very High Speed Hardware Description Language (VHDL) with input and output values in floating-point. Fundamental for this design is its precision. In this paper several bit width representations are used for the inputs and outputs and their precisions are compared to one another, taking into consideration the trade-offs in area, performance and power consumption on FPGA.

Marlon Koendjbiharie
Universidade de Brasilia

Daniel Muñoz
Universidade de Brasilia

Carlos Llanos
Universidade de Brasilia

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