2.5Gbps, +3.3V Combined Transimpedance Limiting Amplifier

High Performance, Higher Integration

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The MAX3866 combined transimpedance preamplifier and limiting postamplifier is intended for application in SDH/SONET systems operating at 2.488Gbps. It operates from a single +3.3V or +5V supply and provides a differential output signal. The differential outputs are each 50Ω reverse terminated (100Ω differential termination) for low-noise and high-speed signal performance.

The small-signal bandwidth and noise performance is specified for a source capacitance of 0.5pF. When the MAX3866 is used with the PIN photodetector, sensitivities better than -22dBm can be achieved. The MAX3866 is equipped with a programmable TTL loss-of-power (LOP) output.
MAX3866: Typical Application Circuit MAX3866: Typical Application Circuit Enlarge+

Key Features

  • Input Sensitivities Better than -22dBm (7.8µAp-p)
  • Overdrive Capability Better than +1.4dBm (2.5mAp-p)
  • Single +3.3V or +5V Supply
  • 165mW Power Dissipation (at 3.3V)
  • 1.8GHz Analog Input Bandwidth
  • Programmable Loss-of-Power Indicator
  • 100Ω Differential Output


  • 2.488Gbps ATM Receivers
  • PIN/Preamplifier Receivers
  • Regenerators for SDH/SONET
  • SDH/SONET Transmission Systems
Request Reliability Report for: MAX3866 
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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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