An Active, Low-Power, ۱۰Gbps, Current-based Transimpedance Amplifier in a Broadband Optical Receiver Front-End

< p>< p class="TJEENormal">An integrated CMOS, low-power optical communication receiver front-end is designed and presented in this paper for specified applications of ۱۰Gbp/s. The transimpedance amplifier (TIA) stage and the limiting amplifier (LA) stage possess an active feedforward network based on current-mirror topologies and differential topologies, respectively. In order to obtain broadband performance, low-power consumption characteristic and low-occupied area on chip, an active type of inductors are employed in the TIA as well as the LA stage. The performance of the optical system is simulated using ۹۰ Nano-meter CMOS technology parameters, which exhibits power dissipation of only ۱.۵mW, -۳dB frequency of ۶.۹۲GHz, ۲۴pA/√Hz input referred noise, and transimpedance gain of ۴۰.۱dB ohm for the TIA stage, while, the whole optical receiver front-end consumes ۷.۷m Watt, providing ۷۱.۴dB ohm gain beside acquiring ۶.۵۵GHz frequency bandwidth. Finally, the performance of the presented optical receiver front-end as a low-power, ۱۰Gbps block-diagram is justified.

Keywords:

Low-Power , Transimpedance amplifier , Limiting Amplifier , Optical Receiver , ۱۰Gbps