Title :
A fully-integrated mixed-signal neural processing module for implantable multi-channel cortical recording
Author :
Sodagar, Amir M. ; Wise, Kensall D. ; Najafi, Khalil
Author_Institution :
Center for Wireless Integrated Microsyst. (WIMS), Univ. of Michigan, Ann Arbor, MI
fDate :
Nov. 29 2006-Dec. 1 2006
Abstract :
A 64-channel neural processor has been developed for use in an implantable neural recording microsystem. In the Scan Mode, the processor is capable of detecting neural spikes using programmable positive, negative, or biphasic thresholds. Spikes are tagged with their associated channel addresses and formed into 18 b data words that are sent serially to the external host. In the Monitor Mode, two channels can be selected and viewed at high resolution for studies where the entire signal is of interest. The processor runs from a 3 V supply and a 2 MHz clock, with a channel scan rate of 64 kS/sec and an output bit rate of 2 Mbps.
Keywords :
bioelectric potentials; biomedical electrodes; biomedical telemetry; brain; medical signal detection; medical signal processing; microelectrodes; neurophysiology; patient diagnosis; 64-channel neural processor; action potentials recording; bidirectional telemetry link; biphasic spike detection; biphasic thresholds; bit rate 2 Mbit/s; frequency 2 MHz; fully-integrated mixed-signal neural processing module; implantable multichannel cortical recording; implantable neural recording microsystem; monitor mode; negative spike detection; neural spike detection; positive spike detection; programmable negative thresholds; programmable positive thresholds; recording microprobes; scan mode; voltage 3 V; Bit rate; Circuits; Clocks; Heart; Implants; Monitoring; Probes; Signal processing; Signal resolution; Telemetry;
Conference_Titel :
Biomedical Circuits and Systems Conference, 2006. BioCAS 2006. IEEE
Conference_Location :
London
Print_ISBN :
978-1-4244-0436-0
Electronic_ISBN :
978-1-4244-0437-7
DOI :
10.1109/BIOCAS.2006.4600302
