Sensors | |
A Low Noise Amplifier for Neural Spike Recording Interfaces | |
Jesus Ruiz-Amaya2  Alberto Rodriguez-Perez2  Manuel Delgado-Restituto1  | |
[1] Institute of Microelectronics of Seville, Avda. Americo Vespucio s/n, Sevilla 41092, Spain; | |
关键词: Low-Noise Amplifier; neural spike recording; biomedical circuit; circuit sizing; | |
DOI : 10.3390/s151025313 | |
来源: mdpi | |
【 摘 要 】
This paper presents a Low Noise Amplifier (LNA) for neural spike recording applications. The proposed topology, based on a capacitive feedback network using a two-stage OTA, efficiently solves the triple trade-off between power, area and noise. Additionally, this work introduces a novel transistor-level synthesis methodology for LNAs tailored for the minimization of their noise efficiency factor under area and noise constraints. The proposed LNA has been implemented in a 130 nm CMOS technology and occupies 0.053 mm-sq. Experimental results show that the LNA offers a noise efficiency factor of 2.16 and an input referred noise of 3.8
【 授权许可】
CC BY
© 2015 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
Files | Size | Format | View |
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RO202003190005616ZK.pdf | 782KB | download |