摘要
对一种结构简单的互阻ＣＭＯＳ放大器的工作原理进行了分析，着重对其灵敏度、频率特性和动态范围等参数与电路结构参数之间的关系进行了模拟分析和设计研究。接收电路按０．３５／０．５μｍ规则设计，在采用０．８μｍ沟道长度的条件下，电路工作频率可达６００Ｍｂ／ｓ，允许最小输入光电流约为５μＡ，光电流噪声抑制能力可通过前两级放大器的宽长比来调节。
The operational mechanism of a simple transimpedance CMOS amplifier is analyzed.The dependence of the sensitivity,bandwidth and dynamic range of the cell on its structure is simulated.The MOSIS scalable CMOS rule of 0.35/ 0.5 μm is used in layout design.For 0.8 μm linewidth,an operating frequency above 600 Mb/s and a minimum detected photo current of about 4.8 μA have been achieved.In addition,the photo current noise immunity can be adjusted by different W/L ratios in the first two stages during the design.
出处
《微电子学》
CAS
CSCD
北大核心
1999年第2期106-110,114,共6页
Microelectronics
关键词
光接收器
CMOS
集成电路
互阻放大器
结构
Optical receiver,CMOS IC,Transimpedance amplifier,Simulation EEACC 1265
