Work

Design of a Novel Very-Low Input Capacitance High-Bandwidth Buffer for a Biomass Sensor

Year: 2024

Type: article

Abstract: In this work, a high-bandwidth very-low input capacitance original topology buffer was designed. The proposed buffer circuitry is conceived as part of a novel non-invasive non-immersed real-time dielectric spectroscopy biomass sensor. Both a circuital-based simulation model and an experimental PCB prototype were implemented and successfully tested. The buffer effective parasitic input capacitance was lowered to a 2% of its original value by means of power supply bootstrapping. This improvement will allow performing differential voltage measurements with the required accuracy and without compromising the necessary bandwidth.

Source: IEEE Sensors Journal

DOI: 10.1109/jsen.2024.3486534

Authors: Fernando Amor, Marcelo A. Haberman, Martín Jamilis, Federico N. Guerrero, Hernán De Battista

Institutions: Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata

Language: English

Topic: Analog and Mixed-Signal Circuit Design

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,495

Funders: Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata, Agencia Nacional de Investigación y Desarrollo, Agencia Nacional de Promoción Científica y Tecnológica