Title :
Neural signal electronics bridge integrated circuit
Author :
Gao, Liu ; Wenyuan, Li ; Zhigong, Wang
Author_Institution :
Inst. of RF-&OE-ICs, Southeast Univ., Nanjing, China
Abstract :
A neural signal electronics bridge integrated circuit(IC) with adjustable gain for biomedical applications has been designed and realized in CSMC´s 0.5 ¿m CMOS technology. A recording circuit with adjustable gain, a buffer stage, and a stimulating circuit constitute the neural signal electronics bridge circuit. The neural signal electronics bridge IC occupies a die area of 0.85 mm×0.8 mm. The circuit can operate under double power supply ± 2.5 V with a power consumption of 2.5mW. The simulation results show that the gain can be variable from 40 dB to 100 dB, the 3 dB bandwidth is 54 kHz, and the output resistance is as low as 6.8 ¿, equivalent input noise is 32.3 nV/sqrt(Hz) from 100Hz to10 KHz.
Keywords :
CMOS integrated circuits; bioelectric potentials; biomedical electronics; bridge circuits; neurophysiology; prosthetics; signal processing equipment; CMOS technology; adjustable gain; bandwidth 54 kHz; biomedical application; buffer stage; gain 40 dB to 100 dB; neural signal electronics bridge IC; neural signal electronics bridge integrated circuit; power 2.5 mW; recording circuit; resistance 6.8 ohm; size 0.5 mum; size 0.8 mm; size 0.85 mm; stimulating circuit constitute; voltage -2.5 V; voltage 2.5 V; Bandwidth; Bridge circuits; CMOS technology; Circuit simulation; Energy consumption; Gain; Immune system; Integrated circuit technology; Power supplies; Signal design; electronics bridge; integrated circuit; neural signal; operational amplifier;
Conference_Titel :
ASIC, 2009. ASICON '09. IEEE 8th International Conference on
Conference_Location :
Changsha, Hunan
Print_ISBN :
978-1-4244-3868-6
Electronic_ISBN :
978-1-4244-3870-9
DOI :
10.1109/ASICON.2009.5351538
