A 5-Gbps optical receiver with monolithically integrated photodetector in 0.18-µm CMOS

This paper describes an optical receiver with monolithically integrated photodetector in 0.18-mum CMOS technology using a combination of spatially modulated light detection and an analog equalizer. A transimpedance amplifier employing negative Miller capacitance is introduced to increase its bandwidth without causing gain peaking. Occupying a core area of 0.72 mm², the fully integrated optical receiver achieves 4.25 Gbps and 5 Gbps with a power consumption of 144 mW and 183 mW respectively.