Title :
Applications of SPICE for modeling miniaturized biomedical sensor systems
Author :
Mundt, Carsten W. ; Nagle, H. Troy
Author_Institution :
NASA Ames Res. Center, Moffett Field, CA, USA
Abstract :
This paper proposes a model for a miniaturized signal conditioning system for biopotential and ion-selective electrode arrays. The system consists of three main components: sensors, interconnections, and signal conditioning chip. The model for this system is based on SPICE. Transmission-line based equivalent circuits are used to represent the sensors, lumped resistance-capacitance circuits describe the interconnections, and a model for the signal conditioning chip is extracted from its layout. In conclusion, a system for measurements of biopotentials and ionic activities can be miniaturized and optimized for cardiovascular applications based on the development of an integrated SPICE system model of its electrochemical, interconnection, and electronic components.
Keywords :
SPICE; biomedical electrodes; biomedical electronics; modelling; electrochemical components; electronic components; integrated SPICE system model; interconnection components; lumped resistance-capacitance circuits; miniaturized biomedical sensor systems modeling; signal conditioning chip; Biomedical electrodes; Biomedical measurements; Biosensors; Electrical resistance measurement; Equivalent circuits; Integrated circuit interconnections; SPICE; Sensor phenomena and characterization; Sensor systems; Transmission lines; Electric Impedance; Electrocardiography; Electrodes, Implanted; Equipment Design; Feasibility Studies; Microelectrodes; Models, Theoretical; Signal Processing, Computer-Assisted;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
