A CMOS optical receiver for optoelectronic integrated circuits

Abstract

A CMOS receiver for optical wireless communication is presented. A stable feedback transimpedance amplifier (TIA) is designed adopting a current-mode amplifier as its feedforward gain element. A band-pass limiting amplifier is employed to boost the outputs of the receiver front-end. Implemented in a 0.35um CMOS, the optical wireless receiver achieves a maximum transimpedance gain of 95.9 dBΩ. The maximum bandwidth is 220 MHz in the presence of a 5pF photodiode capacitance.