622Mbps/1244Mbps Burst-Mode Limiting Amplifier for GPON OLT Applications

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The MAX3632 burst-mode limiting amplifier is designed specifically for 622Mbps or 1244Mbps GPON (G.984) optical line terminal (OLT) receiver applications. The MAX3632 has an electrical input sensitivity of 4mVP-P that supports GPON class-B optical sensitivity at 622Mbps with a PIN photodiode. An LVPECL-compatible burst reset input (active-low RST) connected to the limiting amplifier is used to control the offset correction loop of the MAX3632 as required for burst-mode operation.

The MAX3632 is available in a low-profile, 4mm x 4mm, 24-lead thin QFN package. It operates from a single +3.3V power supply over a -40°C to +85°C temperature range.

Key Features

  • DC-Coupled Limiting Amplifier for Burst-Mode GPON Applications
  • LVPECL Data Output
  • 4mVP-P Input Sensitivity
  • LVPECL Reset Input (RST-bar)
  • LVPECL HOLD Input for Optional Control Modes
  • 4mm x 4mm TQFN Package


  • 1244Mbps GPON OLT Receivers
  • 622Mbps GPON OLT Receivers
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Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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