TY - GEN
T1 - A Reconfigurable Multimodal Sensor Interface IC Based on Direct-Conversion ΔΣ Modulator Structure
AU - Koo, Jimin
AU - Jung, Yoontae
AU - Oh, Sein
AU - Han, Sunglim
AU - Ha, Sohmyung
AU - Je, Minkyu
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - This paper presents a ΔΣ-modulator-based reconfigurable multimodal sensor interface integrated circuit (IC), offering a novel approach to the multimodal measurement of voltage, capacitive, and current signals. A direct-conversion structure is employed in the multimodal sensor interface, and its reconfigurable ΔΣ modulation scheme ensures compact die area, high energy efficiency, and enhanced dynamic range. Fabricated in a 180-nm CMOS process, the multimodal sensor interface achieves measured dynamic ranges of 70.6 dB, 97.8 dB, and 60.0 dB for voltage, capacitance, and current modes, with measured power consumptions of 22.2 μW, 23.0 μW, and 37.7 μW, respectively. The proposed system demonstrates significant improvements in the dynamic range relative to power consumption compared to other state-of-the-art multimodal sensor interface IC designs.
AB - This paper presents a ΔΣ-modulator-based reconfigurable multimodal sensor interface integrated circuit (IC), offering a novel approach to the multimodal measurement of voltage, capacitive, and current signals. A direct-conversion structure is employed in the multimodal sensor interface, and its reconfigurable ΔΣ modulation scheme ensures compact die area, high energy efficiency, and enhanced dynamic range. Fabricated in a 180-nm CMOS process, the multimodal sensor interface achieves measured dynamic ranges of 70.6 dB, 97.8 dB, and 60.0 dB for voltage, capacitance, and current modes, with measured power consumptions of 22.2 μW, 23.0 μW, and 37.7 μW, respectively. The proposed system demonstrates significant improvements in the dynamic range relative to power consumption compared to other state-of-the-art multimodal sensor interface IC designs.
KW - Bio-signal Acquisition
KW - direct conversion
KW - low power
KW - multimodal sensor interface
KW - reconfigurable
KW - wide dynamic range
KW - ΔΣ modulator
UR - http://www.scopus.com/inward/record.url?scp=85198543530&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85198543530&partnerID=8YFLogxK
U2 - 10.1109/ISCAS58744.2024.10557919
DO - 10.1109/ISCAS58744.2024.10557919
M3 - Conference contribution
AN - SCOPUS:85198543530
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
BT - ISCAS 2024 - IEEE International Symposium on Circuits and Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2024 IEEE International Symposium on Circuits and Systems, ISCAS 2024
Y2 - 19 May 2024 through 22 May 2024
ER -