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A wirelessly powered log-based closed-loop deep brain stimulation SoC with two-way wireless telemetry for treatment of neurological disorders

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6 Author(s)
Hyo-Gyuem Rhew ; Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA ; Jaehun Jeong ; Fredenburg, J.A. ; Dodani, S.
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A log-based closed-loop Deep Brain Stimulation system detects and processes low-frequency brain field signals to optimize stimulation parameters. The fully self-contained single-chip system incorporates LNAs, a log-ADC, digital log-filters, a log-DSP with a PI-controller, current stimulators, a two-way wireless transceiver, a clock generator, and an RF energy harvester. The 2×2mm2 180nm CMOS prototype consumes 468μW for recording and processing neural signals, stimulation, and for two-way wireless communication.

Published in:

VLSI Circuits (VLSIC), 2012 Symposium on

Date of Conference:

13-15 June 2012