论文部分内容阅读
A 3.125-Gb/s transimpedance amplifier(TIA) for an optical communication system is realized in 0.35μm CMOS technology.The proposed TIA employs a regulated cascode configuration as the input stage, and adopts DC-cancellation techniques to stabilize the DC operating point.In addition,noise optimization is processed. The on-wafer measurement results show the transimpedance gain of 54.2 dBΩand -3 dB bandwidth of 2.31 GHz.The measured average input referred noise current spectral density is about 18.8 pA/(?).The measured eye diagram is clear and symmetrical for 2.5-Gb/s and 3.125-Gb/s PRBS.Under a single 3.3-V supply voltage,the TIA consumes only 58.08 mW,including 20 mW from the output buffer.The whole die area is 465×435μm~2.
A 3.125-Gb / s transimpedance amplifier (TIA) for an optical communication system is realized in 0.35 μm CMOS technology. The proposed TIA employs a regulated cascode configuration as the input stage, and DC- cancellation techniques to stabilize the DC operating point. The on-wafer measurement results show the transimpedance gain of 54.2 dBΩand -3 dB bandwidth of 2.31 GHz. The measured average input referred noise current spectral density is about 18.8 pA / (?). The measured eye The whole is die area is 465 ×, the output of the TIA consumes only 58.08 mW, including 20 mW from the output buffer. 435μm ~ 2.