Five AlGaAs/GaAs HBT ICs for a 20 Gb/s optical repeater

Akagi, J.; Kuriyama, Y.; Asaka, M.; Sugiyama, Toru; Iizuka, Norio; Tsuda, Koji; Obara, M.

doi:10.1109/isscc.1994.344684

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The Dual Feedback Pre-amplifier1

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Cited by 12 publications

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“…In receiver circuits used in fiber communication, a broadband and high gain transimpedance amplifier has been required as a key device [3]. We adopted dual feedback configuration for this application [9].…”

Section: The Dual Feedback Pre-amplifiermentioning

confidence: 99%

DC to 40 GHz broad-band amplifiers using AlGaAs/GaAs HBT's

Kuriyama

Akagi

Sugiyama

et al.

Proceedings of 1994 IEEE GaAs IC Symposium

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In this paper, we report two types of broad-band amplifiers implemented with AIGaAs/GaAs HBT's. One is a Darlington feedback amplifier and the other is a transimpedance amplifier. In the former circuit, a DC gain of 9.5 dB and a -3 dB bandwidth of 40 GHz were achieved. In the latter circuit, a transimpedance gain of 50 dBR and a -3 dB bandwidth of 27 GHz were achieved. To our best knowlege, they are the highest speed in each circuit configuration.

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Section: The Dual Feedback Pre-amplifiermentioning

confidence: 99%