A 1.2-V 10-Gb/s Highly CPD isolated and bandwidth enhanced optical receiver in 0.13-μm CMOS technology

To highly isolate inherent parasitic capacitance (C_PD) of photodiode, second-order passive LC-ladder network is exploited. And to enhance the bandwidth, various techniques, such as capacitive degeneration, inductive peaking, active feedback, and negative impedance compensation, are applied. In this paper, a 1.2-V 10-Gb/s optical receiver is designed in 0.13-mum CMOS technology. The proposed optical receiver achieves ~8.2-GHz of bandwidth for 0.25-pF of C_PD and ~6.9-GHz of bandwidth for 1-pF of C_PD for 10-Gb/s operation.