The RGC-mode transimpedance preamplifier is chosen to be the final circuit for 10 Gb/s preamplifier because of its small input impedance and broad bandwidth.

• 在几种互阻放大器实现方案中,由于RGC结构具有偏置稳定、输入电阻小和频带宽的优点,适用于高速光纤通信系统,本文采用该结构实现10Gb/s前置放大器。