Design and implementation of microsensor system

Author

Lin, Chii-Wann ; Shao-Cheng Wang ; Chen, Oscal T C ; Wang, Shao-Cheng

Author_Institution

Center for Biomed. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

5

fYear

1997

fDate

1997

Firstpage

2267

Abstract

The design, implementation and characterization of a microsensor system for electrochemical measurements are introduced. This microsensor system consists of an electrochemical cell, amplifier, switches for miniature applications. Currently, we use a single chip microprocessor (80C51), an ADC (ADC0804) and seven-segment display for portable instrument prototype. The proposed microsensor is implemented by using the UMC 0.5 μm CMOS technology with a die size of 1.0 mm×1.0 mm. The electrode area is 600 μm×800 μm. The unique design of a feedback voltage controlled resistor allows a flexible dynamic range for linear conversion of the induced current in various applications

Keywords

CMOS integrated circuits; biomedical electrodes; biomedical electronics; biosensors; electrochemical electrodes; electrochemical sensors; microelectrodes; microsensors; 0.5 micron; ADC; CMOS technology; amperometric sensor; blood glucose detection; design; electrochemical cell; electrochemical measurements; feedback voltage controlled resistor; flexible dynamic range; implementation; induced current; linear conversion; microelectrode; microsensor system; miniature applications; op amp; portable instrument; seven-segment display; single chip microprocessor; CMOS technology; Displays; Electrodes; Feedback; Instruments; Microprocessors; Microsensors; Prototypes; Semiconductor device measurement; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1997. Proceedings of the 19th Annual International Conference of the IEEE

Conference_Location

Chicago, IL

ISSN

1094-687X

Print_ISBN

0-7803-4262-3

Type

conf

DOI

10.1109/IEMBS.1997.758813

Filename

758813