A 128-Channel 6mW Wireless Neural Recording IC with On-the-Fly Spike Sorting and UWB Tansmitter

Author

Chae, Moosung ; Liu, Wentai ; Yang, Zhi ; Chen, Tungchien ; Kim, Jungsuk ; Sivaprakasam, Mohanasankar ; Yuce, Mehmet

Author_Institution

Univ. of California at Santa Cruz, Santa Cruz, CA

fYear

2008

fDate

3-7 Feb. 2008

Firstpage

146

Lastpage

603

Abstract

The chip is composed of eight 16-channel front-end blocks, data serializing circuits, a DSP for on-chip spike sorting, digital MUX, encoder, UWB TX, and bias generators. The chip operates in one of the two modes. In sorting mode, a selected channel is connected to the on-the-fly spike sorting block and the extracted features of the spikes are transmitted for off-chip classification. In streaming mode, all the sampled data from the 128 channels are recorded and transmitted without any additional processing.

Keywords

biomedical electronics; biomedical telemetry; digital signal processing chips; feature extraction; medical signal detection; medical signal processing; multiplexing; neurophysiology; prosthetics; transmitters; ultra wideband communication; DSP; UWB transmitter; bias generators; data serializing circuits; digital MUX; feature extraction; neural prosthetic applications; neural signal recording; off-chip classification; on-chip spike sorting; on-the-fly spike sorting block; sampled data recording; sampled data transmission; streaming mode; wireless data transmission; wireless neural recording IC; Band pass filters; Biomedical measurements; Circuits; FCC; Feature extraction; Noise shaping; Pulse modulation; Signal generators; Sorting; Telemetry;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 2008. ISSCC 2008. Digest of Technical Papers. IEEE International

Conference_Location

San Francisco, CA

Print_ISBN

978-1-4244-2010-0

Electronic_ISBN

978-1-4244-2011-7

Type

conf

DOI

10.1109/ISSCC.2008.4523099

Filename

4523099