Design of an analog front-end for ambulatory biopotential measurement systems |
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| Wang Jiazhen, Xu Jun, Zheng Lirong, Ren Junyan. Design of an analog front-end for ambulatory biopotential measurement systems[J]. Journal of Semiconductors, 2010, 31(10): 105004. doi: 10.1088/1674-4926/31/10/105004 Wang J Z, Xu J, Zheng L R, Ren J Y. Design of an analog front-end for ambulatory biopotential measurement systems[J]. J. Semicond., 2010, 31(10): 105004. doi: 10.1088/1674-4926/31/10/105004.Export: BibTex EndNote |
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| Authors: | Wang Jiazhen Xu Jun Zheng Lirong Ren Junyan |
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| Affiliation: | State Key Laboratory of ASIC & System, Fudan University, Shanghai 201203, China;State Key Laboratory of ASIC & System, Fudan University, Shanghai 201203, China;State Key Laboratory of ASIC & System, Fudan University, Shanghai 201203, China;School of Information and Communication Technology, KTH, Stockholm, SE-16443, Sweden;State Key Laboratory of ASIC & System, Fudan University, Shanghai 201203, China |
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| Abstract: | A continuously tunable gain and bandwidth analog front-end for ambulatory biopotential measurement systems is presented.The front-end circuit is capable of amplifying and conditioning different biosignals.To optimize the power consumption and simplify the system architecture,the front-end only adopts two-stage amplifiers.In addition,careful design eliminates the need for chopping circuits.The input-referred noise of the system is only 1.19 μVrms(0.48-2000 Hz).The chip is fabricated via a SMIC 0.18μm CMOS process.Although the power consumption is only32.1μW under a 3 V voltage supply,test results show that the chip can successfully extract biopotential signals. |
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| Keywords: | analog front-end biopotential measurement system low-power low-noise |
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