A 64 Channelprogrammable closed-loop deep brain stimulator with 8 channel neural amplifier and logarithmic ADC

Author

Lee, Jongwoo ; Rhew, Hyo-Gyuem ; Kipke, Daryl ; Flynn, Michael

Author_Institution

EECS, Univ. of Michigan, Ann Arbor, MI

fYear

2008

fDate

18-20 June 2008

Firstpage

76

Lastpage

77

Abstract

We describe a 64 channel closed-loop deep brain stimulator IC for use in research and treatment of Parkinsonpsilas disease. The system generates programmable stimulation currents and senses and filters neural activity recorded with an 8 channel preamplifier and 200 kS/s 8 bit logADC. The entire system implemented in 0.18 mum CMOS, occupies 2.67 mm², and consumes 271 muW from a 1.8 V supply. In-vivo test data is presented.

Keywords

analogue-digital conversion; brain; neural chips; neuromuscular stimulation; programmable circuits; 8 channel preamplifier; Parkinsons disease; analogue-digital convertor; closed-loop deep brain stimulator IC; logarithmic ADC; neural activity; neural amplifier; neural recording; power 271 muW; programmable closed-loop deep brain stimulator; programmable stimulation currents; size 0.18 mum; voltage 1.8 V; word length 8 bit; Digital filters; Electrodes; Finite impulse response filter; Frequency; Low-noise amplifiers; Parkinson´s disease; Pipelines; Prototypes; Satellite broadcasting; Voltage; DBS; Neural recording; log ADC; stimulation;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Circuits, 2008 IEEE Symposium on

Conference_Location

Honolulu, HI

Print_ISBN

978-1-4244-1804-6

Electronic_ISBN

978-1-4244-1805-3

Type

conf

DOI

10.1109/VLSIC.2008.4585958

Filename

4585958