A Single Chip 2.5 Gbps CMOS Burst Mode Optical Receiver

Abstract

This paper describes the design of a 2.5 Gbps burst-mode optical receiver in a 0.18 mum CMOS process. Integrating both transimpedance amplifier and post limiting amplifier in a single chip, the input sensitivity of the optical receiver is about -18 dBm, and the response time is less than 50 ns. The overall transimpedance gain is 98 dBOmega, and the -3 dB bandwidth is about 1.85 GHz. Operating under a single 1.8 V supply, this chip dissipates only 122 mW