인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
개인구독
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지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전자공학회 JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE Journal of Semiconductor Technology and Science Vol.19 No.1
- 발행연도
- 2019.2
- 수록면
- 30 - 41 (12page)
- DOI
- 10.5573/JSTS.2019.19.1.030
이용수
초록· 키워드
This paper presents a fully differential implantable neural recording front-end IC for monitoring neural activities. Each analog front-end (AFE) consists of a low-noise amplifier (LNA), a variable gain amplifier (VGA), and a buffer. The output signal of the AFE is digitized through a successive approximation register analog-to-digital converter (SAR ADC). The LNA adopts the currentreuse technique to improve the current efficiency, achieving the power consumption as low as 0.95 μW. The implemented LNA has the gain of 40 dB, the lowpass cutoff frequency of 10 kHz, and the high-pass cutoff frequency of sub-1 Hz which is realized using the current-controlled pseudoresistor. The VGA controls the gain from 21.9 dB to 33.9 dB for efficient digitization while consuming the power of 0.35 μW. The buffer drives the capacitive DAC of the ADC and consumes the power of 3.28 μW. The fabricated AFE occupies the area of 0.11 ㎟/Channel and consumes 4.6 μW/Channel under 1-V supply voltage. Each channel achieves the input-referred noise of 2.88 μV<SUB>rms</SUB>, the NEF of 2.38, and the NEF²V<SUB>DD</SUB> of 5.67. The front-end IC is implemented in a standard 1P6M 0.18-mm CMOS process.
#Neural recording
#biomedical device
#low-power
#low-noise amplifier
#noise efficiency factor
#current-reuse
#current-controlled pseudoresistor
#fully differential front-end
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목차
- Abstract
- Ⅰ. INTRODUCTION
- Ⅱ. PROPOSED ARCHITECTURE
- Ⅲ. CIRCUIT DESIGN
- Ⅳ. MEASUREMENT RESULTS
- Ⅴ. CONCLUSION
- REFERENCES
참고문헌
참고문헌 신청최근 본 자료
UCI(KEPA) : I410-ECN-0101-2019-569-000426003