DC-Coupled, UCSP 3.125Gbps Equalizer

Tiny 3.2Gbps Equalizer Interfaces to Any VCC

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The MAX3803 equalizer automatically provides compensation for transmission-medium losses encountered with FR4 stripline and cable in an incredibly small 2mm x 2.5mm package. It is ideal for backplane applications requiring up to 40in between the line card and the switch card or up to 10m of twin ax cable between racks. Its small size provides placement and routing flexibility. The CML inputs and outputs are DC-coupled and can be terminated to a supply as low as +1.1V. The MAX3803 operates from 0°C to +85°C and consumes 160mW at +3.3V.
MAX3803: Typical Application Circuit MAX3803: Typical Application Circuit Enlarge+

Key Features

  • DC-Coupled Input and Output to Terminations as Low as +1.1V
  • 2mm x 2.5mm UCSP™
  • 1Gbps to 3.2Gbps Operating Range
  • Spans 40in (1m) of FR4
  • Spans 10m, 28AWG Twin Ax
  • Receive Equalization to Reduce ISI


  • (LVDS, PECL, or CML)
  • Backplane Interconnect
  • Common-Mode Voltage Translation
  • Rack-to-Rack Interconnect
Product Reliability Reports: MAX3803.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

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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