Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Semiconductor Optoelectronics》 2008-04
Add to Favorite Get Latest Update

0.18 μm CMOS Schmitt A/D Photoelectric Converter

CHENG Li,WANG Ling,YI Tin-rong,ZHI Wan-jiang,FAN Han-hua,WANG Zhen-yu(Institute of Electricity and Information,Jiangsu University,Zhenjiang 212013,CHN)  
A 0.18 μm CMOS A/D photoelectric converter was designed,which included two photoelectric receive devices and a Schmitt A/D photoelectric converter circuit.To improve the gain linearity and stability of the converter,negative feedback was introduced in the operational amplifier,and some measures such as the circuit structure modification and the components parameters optimization were taken.The territory sizes on the operational amplifier was designed and the chip area was 0.42 mm×0.34 mm.The simulation and hardware circuit experiments were carried out before finishing this paper.These experiments results show that the output voltage of the converter mirrors the regularity of the displacement and its direction,this designed converter uses 3.0~5.0 V power supply,the lower cut-off frequency is about 6 Hz,the gain linearity is up to 6.4×10-5,but the power consumption is about 23 mW.With these characteristics,this converter is very suitable for low-frequency displacement photoelectric control systems.
【Fund】: 国家“863”计划项目(2006AA10Z258)
【CateGory Index】: TN43
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved