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ISCAS
2007
IEEE

Amperometric Readout and Electrode Array Chip for Bioelectrochemical Sensors

9 years 5 months ago
Amperometric Readout and Electrode Array Chip for Bioelectrochemical Sensors
— As nanostructured bioelectronic interfaces continue to evolve for sensor applications, new readout circuits are needed to harness their capabilities. This paper presents a single-chip amperometric readout circuit and electrode array system suitable for bioelectrochemical measurements. The chip features a CMOS potentiostat with high resolution, rangeprogrammable current readout and electrochemical cell potential drive circuitry, which can perform on-chip chronoamperometry and cyclic voltammetry assays. Through post-CMOS fabrication, the surface of the chip is prepared with an array of electrodes suitable for formation of bioelectronic interfaces and on-chip bioelectrochemical measurements. The 3x3mm2 chip nominally hosts a 4x4 working electrode array and supports amperometric outputs ranging from 10pA to 10µA with sub-pA resolution.
Andrew Mason, Yue Huang, Chao Yang, Jichun Zhang
Added 04 Jun 2010
Updated 04 Jun 2010
Type Conference
Year 2007
Where ISCAS
Authors Andrew Mason, Yue Huang, Chao Yang, Jichun Zhang
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