A 10 GB/s CMOS transimpedance amplifier with adaptive gain

摘要

A novel broadband low-noise transimpedance amplifier (TIA) with automatic gain control (AGC) is designed with 0.18µm 1.8V RFCMOS technology for the application in 10GB/s fiber-optical data links. Post-layout simulation of the proposed design shows a −3dB bandwidth of 9.1GHz with an adaptive transimpedance gain of 490Ω in the weak-input case and 170Ω under input overload condition.