Title :
Neural Signal Acquisition and Wireless Transmission System Design
Author :
Qu Ruoyuan ; Li Tong ; Xu Shengwei ; Han Fang ; Zhang Li ; Cai Xinxia ; Dang Hua
Author_Institution :
Dept. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China
Abstract :
A wireless neural signal acquisition system is presented for freely-running test. It consists of low-noise, high input impedance analog processing, radio frequency (RF) transmitter and receiver. Firstly, the weak neural signal is amplified by a variable gain pre-amplifier and then digitalized by a Sigma-delta ADC. Secondly, the digital data is transmitted and received with couple of RF circuits based on IEEE STD802.15 standard and on-off keying (OOK) modulation. Fabricated in SMIC 0.18μm CMOS process, the IC prototype occupies 2.88mm2 and consumes 40mW. It works functionally, which can be a wide solution for wireless neural signal processor.
Keywords :
CMOS integrated circuits; amplification; amplitude shift keying; brain; data communication; low-power electronics; medical signal detection; medical signal processing; personal area networks; radio receivers; radio transmitters; sigma-delta modulation; IC prototype; IEEE STD802.15 standard; OOK modulation; RF circuits; RF receiver; RF transmitter; SMIC CMOS process; digital data transmission; digitalization; freely-running test; low-noise high input impedance analog processing; on-off keying modulation; power 40 mW; radio frequency transmitter; sigma-delta ADC; size 0.18 mum; variable gain preamplifier; weak neural signal amplification; wireless neural signal acquisition system; wireless neural signal processor; wireless transmission system design; Impedance; Modulation; Radio frequency; Receivers; Transmitters; Voltage-controlled oscillators; Wireless communication; ADC; CMOS; Neural Signal; low-noise amplifier; wireless;
Conference_Titel :
Dependable, Autonomic and Secure Computing (DASC), 2013 IEEE 11th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4799-3380-8
DOI :
10.1109/DASC.2013.81
