TY - GEN
T1 - Low-power and wide-dynamic-range sigma-delta modulator for an ECG acquisition system
AU - Chiou, Jia Ren
AU - Chang, Ching Chieh
AU - Lee, Shuenn-Yuh
PY - 2015/12/2
Y1 - 2015/12/2
N2 - An analog front-end circuit system, which includes an adaptive sigma-delta modulator (SDM) with a wide dynamic range and a low power consumption, is proposed for an electroencephalogram acquisition system. The required loop filter for the SDM is implemented using Gm-C integrators, which can significantly reduce power consumption and facilitate flexible coefficient adjustment. The performance of the detection system is also improved by employing an adaptive structure and a dynamic range extension algorithm. The system includes a chopper, an SDM, a digital filter with a chopper, and a calibration unit. Circuit simulation reveals that the dynamic range can be extended by more than 40 dB, and accurate results are achieved by the proposed brain signal acquisition system.
AB - An analog front-end circuit system, which includes an adaptive sigma-delta modulator (SDM) with a wide dynamic range and a low power consumption, is proposed for an electroencephalogram acquisition system. The required loop filter for the SDM is implemented using Gm-C integrators, which can significantly reduce power consumption and facilitate flexible coefficient adjustment. The performance of the detection system is also improved by employing an adaptive structure and a dynamic range extension algorithm. The system includes a chopper, an SDM, a digital filter with a chopper, and a calibration unit. Circuit simulation reveals that the dynamic range can be extended by more than 40 dB, and accurate results are achieved by the proposed brain signal acquisition system.
UR - https://www.scopus.com/pages/publications/84962331324
UR - https://www.scopus.com/pages/publications/84962331324#tab=citedBy
U2 - 10.1109/ISBB.2015.7344932
DO - 10.1109/ISBB.2015.7344932
M3 - Conference contribution
AN - SCOPUS:84962331324
T3 - 4th International Symposium on Bioelectronics and Bioinformatics, ISBB 2015
SP - 95
EP - 98
BT - 4th International Symposium on Bioelectronics and Bioinformatics, ISBB 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th International Symposium on Bioelectronics and Bioinformatics, ISBB 2015
Y2 - 14 October 2015 through 17 October 2015
ER -