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- Title
Multichannel Low-Noise Low-Power Amplifier for Neural Signal Acquisition.
- Authors
YASUDA, YOHEI; NAKANO, NOBUHIKO
- Abstract
SUMMARY This paper describes a low-noise and low-power spike neural signal amplifier design that has cut-off frequency compensation between channels and chips. The variation of the frequency characteristics of amplifiers should be minimized among the channels and chips. This is a requirement to perform statistical correlation analysis from a neuroscience-oriented point of view. Our design includes an adjustable cut-off frequency using a 4-bit variable capacitance. After compensation, the variation of the cut-off frequency was reduced to between -0.4 kHz and +0.3 kHz from between -1.1 kHz and +3.6 kHz; that is, the value before trimming under the condition of a target cut-off frequency of 10 kHz. We designed a multineural signal amplifier using the Rohm 0.18
- Subjects
COMPLEMENTARY metal oxide semiconductors; BRAIN-computer interfaces; LARGE scale integration of circuits; LOW noise amplifiers; LOW voltage integrated circuits
- Publication
Electronics & Communications in Japan, 2016, Vol 99, Issue 5, p62
- ISSN
1942-9533
- Publication type
Article
- DOI
10.1002/ecj.11816