A bandwidth‐compensated transimpedance amplifier for multigigabit optical receivers | Zendy

Centurelli F. | Zendy; Luzzi R. | Zendy; Scotti G. | Zendy; Trifiletti A. | Zendy

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A bandwidth‐compensated transimpedance amplifier for multigigabit optical receivers

Author(s) -

Centurelli F.,

Luzzi R.,

Scotti G.,

Trifiletti A.

Publication year - 2001

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.1226

Subject(s) - transimpedance amplifier , bandwidth (computing) , biasing , electrical engineering , electronic engineering , microwave , amplifier , engineering , physics , differential amplifier , voltage , telecommunications

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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