High-Performance CMOS TIA for Data Center Optical Interconnects

Kadaba R. Lakshmikumar, Alexander Kurylak, Romesh Kumar Nandwana, Bibhu Das, Joe Pampanin, Vito Boccuzzi, Pavan Kumar Hanumolu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An overview of Silicon Photonics and SiGe bipolar TIAs are presented for data center links. CMOS inverter-based TIA circuit topologies for high-bandwidth, low-noise, low-power, and high-linearity are discussed in brief. A design methodology to achieve the best overall receiver sensitivity is presented for a standalone TIA and a TIA codesigned with a DSP. The codesigned TIA methodology is validated using a 106.25 Gbps PAM-4 TIA prototype. Designed in a 16 nm FinFET CMOS process, the TIA with a transimpedance gain of 76 dBΩ has a range of 16 dBΩ. The TIA consumes 103.6 mW, has a -3 dB bandwidth of 18.4 GHz, an input-referred noise of 1.58 μA, and a noise density of 9.7 pA/√Hz.

Original languageEnglish (US)
Title of host publication2022 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium, BCICTS 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages9-16
Number of pages8
ISBN (Electronic)9781665491327
DOIs
StatePublished - 2022
Event2022 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium, BCICTS 2022 - Phoenix, United States
Duration: Oct 16 2022Oct 19 2022

Publication series

Name2022 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium, BCICTS 2022

Conference

Conference2022 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium, BCICTS 2022
Country/TerritoryUnited States
CityPhoenix
Period10/16/2210/19/22

Keywords

  • Broadband
  • CMOS inverter-based amplifiers
  • PAM-4
  • Silicon Photonics
  • dynamic voltage scaling (DVS)
  • high linearity
  • optical links
  • transimpedance amplifier (TIA)

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Instrumentation
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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