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A bandwidth-compensated transimpedance amplifier for multigigabit optical receivers

✍ Scribed by F. Centurelli; R. Luzzi; G. Scotti; A. Trifiletti

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
117 KB
Volume
30
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

In this paper, a transimpedance amplifier with an automatic bandwidth compensation circuit is presented. The proposed topology includes a transimpedance amplifier which features a bandwidth control input, and a replica bias circuit to sense the active device dc parameter variations. A Monte Carlo analysis shows a 140 MHz bandwidth variation around 8.1 GHz when a ±50% variation is considered for the transconductance and threshold voltage of the HEMT devices. The same simulation shows a 490 MHz bandwidth variation if the compensation circuit is removed. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 30: 79–81, 2001.

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