Electrochemical Instrumentation of an Embedded Potentiostat System (EPS) for a Programmable-System-On-a-Chip

Under the main features required on portable devices in electrochemical instrumentation is to have a small size, low power consumption, economically affordable and precision in the measurements. This paper describes the development of a programmable Embedded Potentiostat System (EPS) capable of perf...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2018-12, Vol.18 (12), p.4490
Main Authors: Muñoz-Martínez, Adrián Iván, González Peña, Omar Israel, Colomer i Farrarons, Jordi, Rodríguez-Delgado, José Manuel, Ávila-Ortega, Alfonso, Dieck-Assad, Graciano
Format: Article
Language:English
Subjects:
Architectural engineering
chronoamperometry
Circuit design
Circuits
Deoxyribonucleic acid
DNA
Electrochemistry
Electrodes
Electroquímica
Elèctrodes
Embedded systems
Instruments
Internet of Things
Portable equipment
portable potentiostat
potential sweep methods
Potentiostats
programmable-system-on-a-chip
reconfigurable embedded potentiostat
Semiconductors
Sensors
Signal processing
Software
System on chip
Voltammetry
wireless electronic
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Summary:Under the main features required on portable devices in electrochemical instrumentation is to have a small size, low power consumption, economically affordable and precision in the measurements. This paper describes the development of a programmable Embedded Potentiostat System (EPS) capable of performing electrochemical sensing over system-on-a-chip platforms. Furthermore, the study explains a circuit design and develops some validation of the entire system. The hardware validation is performed by electrochemical experiments such as Double Step Chronoamperometry (DSC), Linear Sweep Voltammetry (LSV) and Cyclic Voltammetry (CV); moreover, a comparison of the experimental signals between a commercial potentiostat and the EPS was done by analysis of errors on the response signal. Results illustrate that the EPS is capable of handling currents in the range of absolute values of 86.44 to 3000 nA and having control voltages in the range of ±2 V. The device can support from 50 to 2000 samples per second. The EPS capabilities were compared with other compact potentiostats. The programmable EPS is an original approach which hugely reduces the hardware complexity and leads the way to create new applications for Point-of-Care or industrial developments with a reusable full electronics module.
ISSN:1424-8220
1424-8220
DOI:10.3390/s18124490