A Broadband Transimpedance Amplifier with Optimum Bias Network

DOI

10.2991/meici-16.2016.172How to use a DOI?

Keywords

Regulated cascode; Transimpedance amplifier; Matching networks; CMOS

Abstract

A novel transimpedance amplifier (TIA) based on regulated cascode (RGC)ÿconfiguration was proposed, in which a bias network was added to ensure the main amplifier and the auxiliary amplifier of RGC operate at optimum condition. To achieve high bandwidth, a T-passive matching network was introduced at the input. Since both amplifiers have optimum gain-bandwidth product (GBW), thus low noise and high bandwidth can be obtained in our design scheme. The proposed TIA was designed based on UMC 0.18 m CMOS process, and the simulation results demonstrated that our TIA has a transimpedance gain of 51 dB and a -3 dB bandwidth of 14 GHz with a input capacitance of 0.3 pF. The average equivalent input noise current spectral density is about 13 pA/ Hz within -3 dB bandwidth.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Qian Gao
AU  - Sheng Xie
AU  - Luhong Mao
AU  - Sicong Wu
PY  - 2016/09
DA  - 2016/09
TI  - A Broadband Transimpedance Amplifier with Optimum Bias Network
BT  - Proceedings of the 2016 6th International Conference on Management, Education, Information and Control (MEICI 2016)
PB  - Atlantis Press
SP  - 827
EP  - 831
SN  - 1951-6851
UR  - https://doi.org/10.2991/meici-16.2016.172
DO  - 10.2991/meici-16.2016.172
ID  - Gao2016/09
ER  -