10Gb/s modulators drivers with local feedback networks

Day-Uei Li, Chia-Ming Tsai

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


A novel intrinsic collector-base capacitance (C/sub CB/) feedback network (ICBCFN) was incorporated into the conventional cascode and series-connected voltage balancing (SCVB) circuit configurations to implement 10-Gb/s modulator drivers. The drivers fabricated in 0.35-/spl mu/m SiGe BiCMOS process could generate 9 V/sub PP/ differential output swings with rise/fall time of less than 29 ps. Also, the ICBCFN was modified as an intrinsic drain-gate capacitance feedback network (IDGCFN) to implement drivers with differential output swing of 8 V/sub PP/ in 0.18-/spl mu/m CMOS process. The power consumption is as low as 0.6 W. The present work shows that the driving capability is greater than that of the currently reported silicon-based drivers.
Original languageEnglish
Pages (from-to)1025-1030
Number of pages6
JournalIEEE Journal of Solid-State Circuits
Issue number5
Early online date24 Apr 2006
Publication statusPublished - 31 May 2006


  • intrinsic collector-base capacitance
  • intrinsic drain-gate capacitance
  • laser drivers
  • modulator drivers
  • silicon-based
  • Ge-Si alloys
  • BiCMOS integrated circuits

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