A 93dB-ohm 2.5Gb/s CMOS burst-mode optical receiver with internal reset creation

Abstract

This paper presents a 2.5 Gb/s burst-mode optical receiver with quick response in a 0.18 mum CMOS process. A dual-mode transimpedance amplifier is used to achieve a dynamic range of 19 dB. The internal reset signal created by the limiting amplifier is more reliable due to the increased net gain compared to prior designs. The receiver achieves 93 dBOmega total differential transimpedance gain, 1.56 GHz optical bandwidth, and fast response time of less than 10 ns. This IC dissipates 146 mW from a 1.8 V supply.