GENERAL DESCRIPTION
The ADN2890 is a high gain, limiting amplifier optimized for use in SONET, Gigabit Ethernet (GbE), and Fibre Channel optical receivers that accept input levels of up to 2.0 V p-p differential and have 3 mV p-p differential input sensitivity. The ADN2890 provides the receiver functions of quantization and loss of signal (LOS) detection. The ADN2890 can easily operate at up to 3.2 Gb/s to support LX4 transceivers.

FEATURES
   SFP reference design available
   Input sensitivity: 3 mV p-p
   80 ps rise/fall times
   CML outputs: 700 mV p-p differential
   Programmable LOS detector: 2 mV to 13 mV
   Rx signal strength indicator (RSSI):
      SFF-8472 compliant average power measurement
   Single-supply operation: 3.3 V
   Low power dissipation: 130 mW
   Available in space-saving 3 mm × 3 mm 16-lead LFCSP

APPLICATIONS
   SFP/SFF/GBIC optical transceivers
   OC-3/12/48, GbE, Fibre Channel receivers
   10GBASE-LX4 transceivers
   WDM transponders