Circuit Design of Analog Front-End for Neural Signal Detection

Author

Dang Hua ; Zhang Lei ; Chen Zhiming ; Gui Xiaoyan ; Wang Xinghua

Author_Institution

Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China

fYear

2013

fDate

20-23 Aug. 2013

Firstpage

1817

Lastpage

1819

Abstract

A novel design of analog front-end for detecting the neural signal is present in this paper. According to the traditional way with sigma delta ADC or pipelined ADC, this paper provides a new method to get better performance. The analog front-end contains low noise operational amplifier and SAR ADC which can be shared by multi channels. The design is verified in SMIC 0.18um CMOS process. The total current of 2 channels is only 2mA that is mainly cost by OPA. This circuit provides the new method to achieve ultra low power in Neural Signal Detection system.

Keywords

analogue-digital conversion; medical signal detection; network synthesis; CMOS process; OPA; SAR ADC; analog front-end design; circuit design; low noise operational amplifier; neural signal detection; pipelined ADC; sigma delta ADC; Accuracy; Arrays; Calibration; Capacitance; Capacitors; Operational amplifiers; LNopa; Neural signal; SAR ADC; shared ADC;

fLanguage

English

Publisher

ieee

Conference_Titel

Green Computing and Communications (GreenCom), 2013 IEEE and Internet of Things (iThings/CPSCom), IEEE International Conference on and IEEE Cyber, Physical and Social Computing

Conference_Location

Beijing

Type

conf

DOI

10.1109/GreenCom-iThings-CPSCom.2013.336

Filename

6682347