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A 110dB-CMRR 100dB-PSRR multi-channel neural-recording amplifier system using differentially regulated rejection ratio enhancement in 0.18μm CMOS

Title
A 110dB-CMRR 100dB-PSRR multi-channel neural-recording amplifier system using differentially regulated rejection ratio enhancement in 0.18μm CMOS
Authors
Lee, Se HwanGeorge, Arup KocheethraLee, TaejuChu, Jun-UkHan, SungminKim, Ji-HoonJe, MinkyuLee, Jung Hyup
DGIST Authors
Lee, Jung Hyup
Issue Date
2018-02-14
Citation
65th IEEE International Solid-State Circuits Conference, ISSCC 2018, 472-474
Type
Conference
ISBN
9781509049394
ISSN
0193-6530
Abstract
Multi-channel neural-recording amplifier systems have evolved into the method of choice for analyzing neurophysiological behavior, and are leading to a deeper understanding of the human brain [1-4]. Such systems operate from a noisy supply and ground, especially when they are powered wirelessly. As shown in Fig. 29.7.1, the amplifiers ought to be low-noise, low-power, and resilient against environmental noise and interferences that are capacitively coupled from the power lines (220V/60Hz). Specifications-wise, these requirements translate into high CMRR, TCMRR, and PSRR. TCMRR (total CMRR) is a more realistic specification than CMRR as it includes the effect of the impedances of both electrodes (Ze) and the amplifier input (ZCin) as well. In fact, the TCMRR should be >70dB for reliable detection of a 5μVrms neural signal [1]. © 2018 IEEE.
URI
http://hdl.handle.net/20.500.11750/6362
DOI
10.1109/ISSCC.2018.8310389
Publisher
Institute of Electrical and Electronics Engineers Inc.
Related Researcher
  • Author Lee, Junghyup Integrated Nano-Systems Lab
  • Research Interests Analog and Mixed Signal IC Design; Smart Sensor Systems; Bio-medical ICs and Body Channel Communication Systems
Files:
There are no files associated with this item.
Collection:
Department of Information and Communication EngineeringIntegrated Nano-Systems Lab2. Conference Papers


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