A 4 μW/Ch analog front-end module with moderate inversion and power-scalable sampling operation for 3-D neural microsystems

Khaled Al-Ashmouny, Sun Il Chang, Euisik Yoon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

We report an analog front-end prototype designed for integration into 3-D neural recording microsystems. For scaling towards massive parallel neural recording, the prototype has investigated some critical circuit challenges in power, area, interface, and modularity. The front-end features an extremely low power consumption (4μW/channel), optimized energy efficiency using moderate inversion in low-noise amplifier (K LNA of 5.98×10 8 and NEF of 2.9) and programmable-gain amplifier, a minimized asynchronous interface (only 2 per 16 channels) for command and data capturing, a power-scalable sampling and digital operation (up to 50kS/s/channel), and a wide configuration range (9-bit) of gain and bandwidth. The implemented front-end module has achieved a reduction in noise-power-area by a factor of 5-25 times as compared to the-state-of-the-art front-ends reported up to date.

Original languageEnglish
Title of host publication2011 IEEE Biomedical Circuits and Systems Conference, BioCAS 2011
Pages1-4
Number of pages4
DOIs
Publication statusPublished - 2011
Event2011 IEEE Biomedical Circuits and Systems Conference, BioCAS 2011 - San Diego, CA, United States
Duration: 2011 Nov 102011 Nov 12

Publication series

Name2011 IEEE Biomedical Circuits and Systems Conference, BioCAS 2011

Conference

Conference2011 IEEE Biomedical Circuits and Systems Conference, BioCAS 2011
CountryUnited States
CitySan Diego, CA
Period11/11/1011/11/12

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Biomedical Engineering
  • Electrical and Electronic Engineering

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