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This paper presents a microelectronic system which is capable of making a signal record and functional electric stimulation of an injured spinal cord.As a requirement of implantable engineering for the regeneration microelectronic system,the system is of low noise,low power,small size and high performance.A front-end circuit and two high performance OPAs (operational amplifiers) have been designed for the system with different functions,and the two OPAs are a low-noise low-power two-stage OPA and a constant-g m RTR input and output OPA.The system has been realized in CSMC 0.5-μm CMOS technology.The test results show that the system satisfies the demands of neuron signal regeneration.
As a requirement of implantable engineering for the regeneration microelectronic system, the system is of low noise, low power, small size and high performance.A front-end circuit and two high performance OPAs (operational amplifiers) have been designed for the system with different functions, and the two OPAs are a low-noise low-power two-stage OPA and a constant-g m RTR input and output OPA. The system has been realized in CSMC 0.5-μm CMOS technology. The test results show that the system satisfies the demands of neuron signal regeneration.