A differential difference amplifier for neural recording system with tunable low-frequency cutoff

Kai Wen Yao, Wei Chih Lin, Cihun Siyong Alex Gong, Yu Ying Lin, Muh Tian Shiue

研究成果: 書貢獻/報告類型會議論文篇章同行評審

11 引文 斯高帕斯(Scopus)

摘要

This paper describes a low-noise and low-power architecture of the differential difference amplifier (DDA) for neural recording system. The proposed neural amplifier combines DC offset rejection and low-frequency cutoff tuning without off-chip components. DC offset rejection is carried out by ac coupling which is realized by series connection of a capacitor and a MOS-bipolar pseudoresistor. Low-frequency cutoff tuning permits recording local field potential or neural action potential. Frequency tuning mechanism depends on the feedback capacitor and floating tunable resistor which constructs a low frequency pole nearby 100 Hz. The proposed design is in TSMC 0.18 μm 1P6M CMOS process, which achieves gain of 40.8 dB, passband from 107 Hz to 10.3 kHz, input-referred noise of 4.83 μVrms, power consumption of 25.9 μW, and 0.084 mm2 of chip area.

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主出版物標題2008 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC
DOIs
出版狀態已出版 - 2008
事件2008 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC - Hong Kong, China
持續時間: 8 12月 200810 12月 2008

出版系列

名字2008 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC

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???event.eventtypes.event.conference???2008 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC
國家/地區China
城市Hong Kong
期間8/12/0810/12/08

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