GENERAL DESCRIPTION
The ADN2891 is a 3.2 Gbps limiting amplifier with integrated loss-of-signal (LOS) detection circuitry and a received signal strength indicator (RSSI). This part is optimized for SONET, Gigabit Ethernet (GbE), and Fibre Channel optoelectronic conversion applications. The ADN2891 has a differential input sensitivity of 4 mV p-p and accepts up to a 2.0 V p-p differential input overload voltage. The ADN2891 supports current mode logic (CML) outputs with controlled rise and fall times.

FEATURES
    Input sensitivity: 4 mV p-p
    80 ps rise/fall times
    CML outputs: 700 mV p-p differential
    Programmable LOS detector: 3.5 mV to 35 mV
    Rx signal strength indicator (RSSI)
    SFF-8472-compliant average power measurement
    Single-supply operation: 3.3 V
    Low power dissipation: 145 mW
    Available in space-saving 3 mm × 3 mm, 16-lead LFCSP
    Extended temperature range: −40°C to +95°C
    SFP reference design available

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