The design of preamplifier and ADC circuit base on weak e-optical signal

摘要：

Combined with the demand of the process of weak eoptical signal in QPD detection system, the article introduced the circuit principle of deigning preamplifier and ADC circuit with I/V conversion, instrumentation amplifier, low-pass filter and 16-bit A/D transformation. At the same time the article discussed the circuits noise suppression and isolation according to the characteristics of the weak signal, and gave the method of software rectification. Finally, tested the weak signal with keithley2000, and got a good effect.

作者: LENG Fen YANG Ying-ping YU Ya-nan XU Xiao-ying

作者单位: School of Information Engineering, WUT, Wuhan 430070, China School of Science, WUT, Wuhan 430070, Ch School of Science, WUT, Wuhan 430070, China

会议类型: 国际会议

会议名称: 3rd International Photonics & OptoElectronics Meetings(第三届国际光子与光电子学会议 POEM 2010)

会议地点: 武汉

会议语种:英文

页码: 1-8

在线出版日期: 2010-11-03（万方平台首次上网日期，不代表论文的发表时间）