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The presence of neural signals is the most important feature of animals' life. Monitoring, analysis and regeneration of neural signals are important for the rehabilitation of paralyzed patients. In this paper, the neural signal regeneration between the proximal and the distal end of an injured nerve is introduced. In the experiment a microelectronic module is used as a channel bridge. The regeneration...
A six-channel neural signal regeneration integrated circuit (IC) was designed and fabricated in CSMC's 0.5-mum CMOS technology. The circuit consists of a low-noise and high common mode rejection ratio (CMRR) instrument amplifier, an inverted operational amplifier (OPA) and a buffer. The six-channel IC occupies a die area of 1.9 mm x 1.6 mm. The testing result shows that the consumption of a single...
A microelectrode array (MEA) chip for in-vitro signal recording and stimulating of neurons assemble is presented. The chip comprises 4times4 active sensor cells and ESD protection circuits. Each sensor cell is 60 mumtimes60 mum in dimension, including a 15 mumtimes25 mum stimulating electrode, a 15 mumtimes25 mum recording electrode and two NMOS switches which can linearly transfer signals with peak-to-peak...
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