A 430nW 64nV/vHz current-reuse telescopic amplifier for neural recording applications

This paper presents a low-power low-noise amplifier for neural recording applications. A single-stage current-reuse telescopic topology is proposed to achieve high DC gain and improve the noise efficiency factor (NEF) while allowing the amplifier to be scaled for high bandwidth sensing applications...

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Bibliographic Details
Main Authors: Song, S., Rooijakkers, M. J., Harpe, P., Rabotti, C., Mischi, M., van Roermund, A. H. M., Cantatore, E.
Format: Conference Proceeding
Language:English
Subjects:
Bandwidth
Current measurement
Floors
Noise
Thermal noise
Topology
Voltage measurement
Citations: Items that cite this one
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Summary:This paper presents a low-power low-noise amplifier for neural recording applications. A single-stage current-reuse telescopic topology is proposed to achieve high DC gain and improve the noise efficiency factor (NEF) while allowing the amplifier to be scaled for high bandwidth sensing applications and/or to achieve lower thermal noise floor. The design is fabricated in a standard 0.18μm CMOS process and occupies an active area of 0.16mm 2 . Experimental measurements show a 430nW power consumption from a 1.2V supply, a thermal noise floor of 63.8nV/√Hz and a corresponding NEF of 1.5.
ISSN:2163-4025
2766-4465
DOI:10.1109/BioCAS.2013.6679704