High gain transimpedance amplifier with current mirror load

Author

Atef, Mohamed

Author_Institution

Electr. Eng. Dept., Assiut Univ., Assiut, Egypt

fYear

2014

fDate

19-21 June 2014

Firstpage

220

Lastpage

223

Abstract

This work presents the design of transimpedance amplifier (TIA) with current mirror load implemented in a 130 nm CMOS technology. The proposed TIA uses a common source (CS) TIA with a shunt feedback resistor with current mirror load to increase the TIA gain. The TIA is followed by post amplifier chain consisting of two-stage differential amplifier and a 50 Ω differential output driver to provide an interface to the measurement setup. The complete optical receiver shows an optical sensitivity of -20.3dBm for a BER= 10^-12. The TIA alone achieves a transimpedance gain of 64.5 dBΩ, 1.05 GHz bandwidth at 2 pF total input capacitance. The current consumption of the TIA is 2.1 mA for a 1.8V single supply voltage.

Keywords

CMOS analogue integrated circuits; current mirrors; differential amplifiers; error statistics; operational amplifiers; sensitivity; BER; CMOS technology; CS TIA; bandwidth 1.05 GHz; bit error rate; capacitance 2 pF; common source; current 2.1 mA; current mirror load; differential output driver; high gain transimpedance amplifier; measurement setup; optical sensitivity; post amplifier chain; resistance 50 ohm; shunt feedback resistor; two-stage differential amplifier; voltage 1.8 V; Integrated circuits; Current Mirror Load; Optical Receiver; Transimpedance Amplifier;

fLanguage

English

Publisher

ieee

Conference_Titel

Mixed Design of Integrated Circuits & Systems (MIXDES), 2014 Proceedings of the 21st International Conference

Conference_Location

Lublin

Print_ISBN

978-83-63578-03-9

Type

conf

DOI

10.1109/MIXDES.2014.6872189

Filename

6872189