A Design of Neural Signal Sensing LSI with Multi-Input-Channels
Summary :
A neural-signal sensing system with multi-input-channels was designed utilizing a new chopper amplifier with direct connected to a multiplexer. The proposed system consists of multiplexers, chopper amplifiers, a multi-mode analog-to-digital converter (ADC), and a wireless transmitter. It enables to measure 50-channel signals at the same time, which are selected out of 100 channels to detect useful information. The test chip including 10-channel-inputs chopper-amplifier and multi-mode ADC, that was designed and fabricated with a mixed signal 0.35-µm CMOS technology. Utilizing the proposed direct chopper input scheme and the shared chopper amplifier, the circuits was designed with a small area of 9.4 mm2. High accuracy channel selecting and multiplexing operations were confirmed, and an equivalent input noise of 10-nV/root-Hz was obtained with test chip measurements. Power dissipation of the chopper amplifier and the ADC were 6.0-mW and 2.5-mW at a 3-V supply voltage, respectively.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E87-A No.2 pp.376-383
- Publication Date
- 2004/02/01
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
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Takeshi YOSHIDA, Takayuki MASHIMO, Miho AKAGI, Atsushi IWATA, Masayuki YOSHIDA, Kazumasa UEMATSU, "A Design of Neural Signal Sensing LSI with Multi-Input-Channels" in IEICE TRANSACTIONS on Fundamentals,
vol. E87-A, no. 2, pp. 376-383, February 2004, doi: .
Abstract: A neural-signal sensing system with multi-input-channels was designed utilizing a new chopper amplifier with direct connected to a multiplexer. The proposed system consists of multiplexers, chopper amplifiers, a multi-mode analog-to-digital converter (ADC), and a wireless transmitter. It enables to measure 50-channel signals at the same time, which are selected out of 100 channels to detect useful information. The test chip including 10-channel-inputs chopper-amplifier and multi-mode ADC, that was designed and fabricated with a mixed signal 0.35-µm CMOS technology. Utilizing the proposed direct chopper input scheme and the shared chopper amplifier, the circuits was designed with a small area of 9.4 mm2. High accuracy channel selecting and multiplexing operations were confirmed, and an equivalent input noise of 10-nV/root-Hz was obtained with test chip measurements. Power dissipation of the chopper amplifier and the ADC were 6.0-mW and 2.5-mW at a 3-V supply voltage, respectively.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e87-a_2_376/_p
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@ARTICLE{e87-a_2_376,
author={Takeshi YOSHIDA, Takayuki MASHIMO, Miho AKAGI, Atsushi IWATA, Masayuki YOSHIDA, Kazumasa UEMATSU, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Design of Neural Signal Sensing LSI with Multi-Input-Channels},
year={2004},
volume={E87-A},
number={2},
pages={376-383},
abstract={A neural-signal sensing system with multi-input-channels was designed utilizing a new chopper amplifier with direct connected to a multiplexer. The proposed system consists of multiplexers, chopper amplifiers, a multi-mode analog-to-digital converter (ADC), and a wireless transmitter. It enables to measure 50-channel signals at the same time, which are selected out of 100 channels to detect useful information. The test chip including 10-channel-inputs chopper-amplifier and multi-mode ADC, that was designed and fabricated with a mixed signal 0.35-µm CMOS technology. Utilizing the proposed direct chopper input scheme and the shared chopper amplifier, the circuits was designed with a small area of 9.4 mm2. High accuracy channel selecting and multiplexing operations were confirmed, and an equivalent input noise of 10-nV/root-Hz was obtained with test chip measurements. Power dissipation of the chopper amplifier and the ADC were 6.0-mW and 2.5-mW at a 3-V supply voltage, respectively.},
keywords={},
doi={},
ISSN={},
month={February},}
Copy
TY - JOUR
TI - A Design of Neural Signal Sensing LSI with Multi-Input-Channels
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 376
EP - 383
AU - Takeshi YOSHIDA
AU - Takayuki MASHIMO
AU - Miho AKAGI
AU - Atsushi IWATA
AU - Masayuki YOSHIDA
AU - Kazumasa UEMATSU
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E87-A
IS - 2
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - February 2004
AB - A neural-signal sensing system with multi-input-channels was designed utilizing a new chopper amplifier with direct connected to a multiplexer. The proposed system consists of multiplexers, chopper amplifiers, a multi-mode analog-to-digital converter (ADC), and a wireless transmitter. It enables to measure 50-channel signals at the same time, which are selected out of 100 channels to detect useful information. The test chip including 10-channel-inputs chopper-amplifier and multi-mode ADC, that was designed and fabricated with a mixed signal 0.35-µm CMOS technology. Utilizing the proposed direct chopper input scheme and the shared chopper amplifier, the circuits was designed with a small area of 9.4 mm2. High accuracy channel selecting and multiplexing operations were confirmed, and an equivalent input noise of 10-nV/root-Hz was obtained with test chip measurements. Power dissipation of the chopper amplifier and the ADC were 6.0-mW and 2.5-mW at a 3-V supply voltage, respectively.
ER -
English
