| dc.creator | Guerrero, Federico Nicolás | |
| dc.creator | Spinelli, Enrique Mario | |
| dc.creator | Grasso, Alfio Dario | |
| dc.creator | Palumbo, Gaetano | |
| dc.date | 2022 | |
| dc.date | 2023-08-25T13:18:45Z | |
| dc.date.accessioned | 2024-07-24T03:45:05Z | |
| dc.date.available | 2024-07-24T03:45:05Z | |
| dc.identifier | http://sedici.unlp.edu.ar/handle/10915/156863 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/9535047 | |
| dc.description | This work proposes a Double Differential (DD) amplifier topology which exploits the advantages of the current-mode approach. DD amplifiers are useful as front-ends in standalone active electrodes for superficial electromyography (sEMG) wearable applications and electroneurography (ENG) measurement devices. Front-ends for these applications need to attain low noise, high common-mode rejection ratio, and high input impedance to measure biopotential signals and can further benefit from low power operation, a small size, and an easily adaptable output. Presently published DD amplifiers are either complex in terms of a high part count, leading to higher power consumption and size, or suffer from limited interference-rejection capabilities and require further analog processing for compatibility with single-ended systems. Therefore, in this work, second-generation current conveyors have been leveraged to obtain a simple topology combining a small active-part count, a high common-mode rejection ratio, and a flexible output stage. The current-mode DD amplifier is presented and analyzed in detail to estimate its parameters and model the effects of nonidealities in the circuit. In order to validate the proposed topology, a discrete-component implementation was realized as a proof-of-concept. The results experimentally demonstrated the properties of the proposed topology and its feasibility for measuring superficial sEMG DD signals. | |
| dc.description | Instituto de Investigaciones en Electrónica, Control y Procesamiento de Señales | |
| dc.format | application/pdf | |
| dc.format | 45870-45880 | |
| dc.language | en | |
| dc.rights | http://creativecommons.org/licenses/by/4.0/ | |
| dc.rights | Creative Commons Attribution 4.0 International (CC BY 4.0) | |
| dc.subject | Ingeniería | |
| dc.subject | Informática | |
| dc.subject | active electrode | |
| dc.subject | amplifier | |
| dc.subject | biopotential instrumentation | |
| dc.subject | current conveyor | |
| dc.subject | double-differential | |
| dc.subject | electromyography | |
| dc.title | Double-Differential Amplifier for sEMG Measurement by Means of a Current-Mode Approach | |
| dc.type | Articulo | |
| dc.type | Articulo | |
