Comparative study and analysis of noise reduction techniques for front-end amplifiers

Liu, Lei; Zou, Xiaodan; Goh, Wang Ling; Je, Minkyu

doi:10.1109/isicir.2011.6131923

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Circuit Topologies1

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“…However, when employed in a multi-channel system, there is some concern that the resulting crosstalk would likely cause issue with increasing channel count. Current reuse as a noise and power reduction method was also discussed in [36]. (b)…”

Section: Circuit Topologiesmentioning

confidence: 99%

A Survey of Neural Front End Amplifiers and Their Requirements toward Practical Neural Interfaces

Bharucha

Sepehrian

Gosselin

2014

JLPEA

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When designing an analog front-end for neural interfacing, it is hard to evaluate the interplay of priority features that one must upkeep. Given the competing nature of design requirements for such systems a good understanding of these trade-offs is necessary. Low power, chip size, noise control, gain, temporal resolution and safety are the salient ones. There is a need to expose theses critical features for high performance neural amplifiers as the density and performance needs of these systems increases. This review revisits the basic science behind the engineering problem of extracting neural signal from living tissue. A summary of architectures and topologies is then presented and illustrated through a rich set of examples based on the literature. A survey of existing systems is presented for comparison based on prevailing performance metrics.

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Section: Circuit Topologiesmentioning

confidence: 99%