Title :
A 1-Wire® communication interface between a control hub and locally powered epidural stimulators
Author :
Eder, Clemens ; Valente, Virgilio ; Donaldson, Nick ; Demosthenous, Andreas
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London, London, UK
fDate :
Oct. 31 2013-Nov. 2 2013
Abstract :
This paper presents a modified 1-Wire® based communication architecture between one active and several passive units of a distributed implantable system. The passive slave units are embedded in the electrode array. We focus in particular on the introduction of the physical and data link layer of the communication block, and present post-layout results of simulated data transfer between the hub and one slave in 0.18-μm power management CMOS technology. The communication block has a power consumption of 12.5 μW for a gross bit rate of 11.1 kBit/s. The proposed interface is inherently safe and suitable for exchanging status and sensor data between implants. The possibility to achieve higher symbol rates is discussed.
Keywords :
CMOS integrated circuits; arrays; bioelectric potentials; biomedical communication; biomedical electrodes; biomedical electronics; electronic data interchange; medical control systems; neurophysiology; patient treatment; power consumption; wires (electric); 0.18-μm power management CMOS technology; 1-wire communication interface; communication block power consumption; control hub; data link layer; data transfer simulation; electrode array; gross bit rate; high symbol rate; implant sensor data exchange; implant status data exchange; implantable system active unit; implantable system passive unit; locally powered epidural stimulator; modified 1-wire based communication architecture; passive slave unit; physical link layer; power 12.5 muW; size 0.18 mum; Capacitors; Cathodes; Integrated circuits; Oscillators; Protocols; Wires;
Conference_Titel :
Biomedical Circuits and Systems Conference (BioCAS), 2013 IEEE
Conference_Location :
Rotterdam
DOI :
10.1109/BioCAS.2013.6679677
