【摘要】 利用0.18μm CMOS工艺设计了应用于光接收机中的10Gb/s限幅放大器。此限幅放大器由输入缓冲,4级放大单元,一级用于驱动50Ω传输线的输出缓冲和失调电压补偿回路构成。输入动态范围为38dB(10mV～800mV),负载上的输出限幅在400mV,在3.3V电源电压下,功耗仅为99mW。整个芯片面积为0.8×1.3mm2。更多还原

【Abstract】 A 10Gb/s limiting amplifier for fiber-optic transmission system is realized in a 0.18μm CMOS technology. The whole circuit consists of an input-buffer stage,four gain cells,and a output buffer for driving 50 transmission lines and offset compensation for offset cancellation. This limiting amplifier allows an input dynamic is rang of 38dB (10mV～800mV) and provides a constant output voltage swing (400mV),in which the power dissipation is only 99mW with a supply of 3.3V and the chip area is 0.8×1.3mm2.更多还原