TY - GEN
T1 - A Biopotential Amplifier IC with Active Common-Mode Cancellation for Closed-Loop Neural Interfaces
AU - Yoo, Hyojun
AU - Cha, Hyouk Kyu
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - This work presents a biopotential signal acquisition amplifier with feedforward common-mode (CM) artifact cancellation function to tolerate large stimulation artifacts in closed-loop neural interface systems. Designed using 180 nm CMOS process, the proposed amplifier is able to withstand up to 1 Vpp of stimulation artifact while achieving 20 dB closed-loop gain, 3.09 μ Vrms input referred noise, and noise efficiency factor of 1.87 over 10 kHz bandwidth. The total harmonic distortion for a 80-mVpp input at 1 kHz applied with 1-Vpp CM artifact at 900-Hz is -85.1 dB.
AB - This work presents a biopotential signal acquisition amplifier with feedforward common-mode (CM) artifact cancellation function to tolerate large stimulation artifacts in closed-loop neural interface systems. Designed using 180 nm CMOS process, the proposed amplifier is able to withstand up to 1 Vpp of stimulation artifact while achieving 20 dB closed-loop gain, 3.09 μ Vrms input referred noise, and noise efficiency factor of 1.87 over 10 kHz bandwidth. The total harmonic distortion for a 80-mVpp input at 1 kHz applied with 1-Vpp CM artifact at 900-Hz is -85.1 dB.
KW - biopotential amplifier
KW - common-mode artifact
UR - https://www.scopus.com/pages/publications/85148447570
U2 - 10.1109/ISOCC56007.2022.10031542
DO - 10.1109/ISOCC56007.2022.10031542
M3 - Conference contribution
AN - SCOPUS:85148447570
T3 - Proceedings - International SoC Design Conference 2022, ISOCC 2022
SP - 310
EP - 311
BT - Proceedings - International SoC Design Conference 2022, ISOCC 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 19th International System-on-Chip Design Conference, ISOCC 2022
Y2 - 19 October 2022 through 22 October 2022
ER -