CMOS Transimpedance Amplifier for Gigabit-per-Second Optical Wireless Communications

A variable-gain current-amplifier-based feedback transimpedance amplifier (CA-TIA) with a gain-insensitive bandwidth is analyzed and designed for gigabit-per-second optical wireless communications. Implemented in 0.18-μm CMOS, as the transimpedance gain varies from 55.8 to 69.3dBΩ, the 3-dB bandwidt...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems. II, Express briefs Express briefs, 2016-05, Vol.63 (5), p.418-422
Main Authors: Chen, Roger Yubtzuan, Zong-Yi Yang
Format: Article
Language:English
Subjects:
Amplification
Bandwidth
Circuits
CMOS
Feedback
Gain
High-speed optical techniques
Optical amplifiers
Optical feedback
Optical receivers
Optical transmitters
optical wireless communications
optical wireless receiver
Radio frequency
TIA
transimpedance amplifier
visible light communications
Wireless communication
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Summary:A variable-gain current-amplifier-based feedback transimpedance amplifier (CA-TIA) with a gain-insensitive bandwidth is analyzed and designed for gigabit-per-second optical wireless communications. Implemented in 0.18-μm CMOS, as the transimpedance gain varies from 55.8 to 69.3dBΩ, the 3-dB bandwidth of the CA-TIA remains relatively invariable around 1 GHz.
ISSN:1549-7747
1558-3791
DOI:10.1109/TCSII.2015.2505264