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摘要
本文采用0.13 μ m CMOS技术实现了10gb /s、95db、20mw的高速串行接口光接收机前端。为了保证低成本光电二极管的10gb /s工作，必须抑制光电二极管固有寄生电容的影响。因此，采用lc阶梯滤波器和改进的共门放大器作为前置放大器的输入级。为了提高带宽，在前置和后置放大器中采用了容性退化、有源反馈、负阻抗补偿和反向缩放技术。
A 10-Gb/s, 95-dBOmega, 20-mW Optical Receiver Front-End in 0.13-mum CMOS Technology
In this paper, a 10-Gb/s, 95-dB�, 20-mW optical receiver front-end is realized in a 0.13-�� m CMOS technology for high speed serial interface. To guarantee 10-Gb/s operation using low cost photodiode, the effect of inherent photodiode parasitic capacitance should be suppressed. Thus, LC-ladder filter and modified common-gate amplifier is exploited as the input stage of pre amplifier. To enhance the bandwidth, capacitive degeneration, active feedback, and negative impedance compensation, and inversely scaling technique are exploited in pre and post amplifier.
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