A novel mixed-signal generation, acquisition and elaboration motherboard for electrochemical sensing is presented. This compact USB-controlled instrument is based on a FPGA for fast real-time execution of multiple measurement families: amperometry, voltammetry and impedance spectroscopy in particular. A digital dual-phase lock-in demodulator based on an internal DDS/PLL has been embedded with a custom analog front-end to provide an extended frequency range up to 10MHz. The design and experimental characterization of the full instrument encompassing fast (14bit, 80MSa/s) and auxiliary precise (18bit, 100kSa/s) channels are here discussed.

Compact FPGA-based elaboration platform for wide-bandwidth electrochemical measurements

CARMINATI, MARCO;ROTTIGNI, ANGELO;FERRARI, GIORGIO;SAMPIETRO, MARCO
2012

Abstract

A novel mixed-signal generation, acquisition and elaboration motherboard for electrochemical sensing is presented. This compact USB-controlled instrument is based on a FPGA for fast real-time execution of multiple measurement families: amperometry, voltammetry and impedance spectroscopy in particular. A digital dual-phase lock-in demodulator based on an internal DDS/PLL has been embedded with a custom analog front-end to provide an extended frequency range up to 10MHz. The design and experimental characterization of the full instrument encompassing fast (14bit, 80MSa/s) and auxiliary precise (18bit, 100kSa/s) channels are here discussed.
Instrumentation and Measurement Technology Conference (I2MTC), 2012 IEEE International
9781457717734
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/693565
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