Dual amp features variable gain and high bandwidth

George Peund*, Jim Zhang, Jieh-Tsorng Wu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Variable-gain amplifiers (VGAs) are important components in many receiver systems. A VGA design is described intended for lightwave transmission systems operating at gigabit-per-second rates. The design is based on two cascaded monolithic amplifiers that provide 40-dB gain, 2.5-GHz bandwidth, and 34-dB dynamic range in a ceramic hybrid package. The VGA architecture is described and its performance is summarized. The topics discussed are the variable-gain stage, the variable gain control translator, noise reduction, and device stability.

Original languageEnglish
Pages (from-to)87, 88, 90, 92, 94
Number of pages5
JournalMicrowaves & RF
Issue number2
StatePublished - 1 Feb 1992


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