Artículo
Design of a CMOS closed-loop system with applications to bio-impedance measurements
Autor/es | Yúfera García, Alberto
Rueda Rueda, Adoración |
Departamento | Universidad de Sevilla. Departamento de Tecnología Electrónica Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo |
Fecha de publicación | 2010 |
Fecha de depósito | 2018-06-19 |
Publicado en |
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Resumen | This paper proposes a method for impedance measurements based on a closed-loop implementation of CMOS circuits. The proposed system has been conceived for alternate current excited systems, performing simultaneously driving ... This paper proposes a method for impedance measurements based on a closed-loop implementation of CMOS circuits. The proposed system has been conceived for alternate current excited systems, performing simultaneously driving and measuring functions, thanks to feedback. The system delivers magnitude and phase signals independently, which can be optimized separately, and can be applied to any kind of load (resistive and capacitive). Design specifications for CMOS circuit blocks and trade-offs for system accuracy and loop stability have been derived. Electrical simulation results obtained for several loads agree with the theory, enabling the proposed method to any impedance measurement problem, in special, to bio-setups including electrodes. |
Agencias financiadoras | Ministerio de Ciencia e Innovación (MICIN). España |
Identificador del proyecto | TEC2007-68072 |
Cita | Yúfera García, A. y Rueda Rueda, A. (2010). Design of a CMOS closed-loop system with applications to bio-impedance measurements. Microelectronics Journal, 41 (4), 231-239. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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Design of a CMOS closed-loop.pdf | 1.304Mb | [PDF] | Ver/ | |