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The design of an electrical impedance spectroscopy acquisition and processing system using a 0.13 μm CMOS technology with a 1kHz to 10 GHz functional frequency range is presented. The system is based on a quadrature modulator in a lock-in architecture. The design of each one of the modules of the system is explained, and post-layout simulations are used to validate the main features of the design...
In this paper, different architectures at integrated circuit level for the implementation of Electrical Impedance Spectroscopy(EIS) systems are compared and discused. The main functional blocks required by each architecture and their underlying concepts are explained. Additionally, the performance and design specifications for different implementations are contrasted.
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