ADN2890ACP-RL7

ADN2890ACP-RL7 FEATURES

SFP reference design availableInput sensitivity: 3 mV p-p80 ps rise/fall timesCML outputs: 700 mV p-p differentialProgrammable LOS detector: 2 mV to 13 mVRx signal strength indicator (RSSI):SFF-8472 compliant average power measurementSingle-supply operation: 3.3 VLow power dissipation: 130 mWAvailable in space-saving 3 mm × 3 mm 16-lead LFCSP

ADN2890ACP-RL7 GENERAL DESCRIPTION

The ADN2890 is a high gain, limiting amplifier optimized foruse in SONET, Gigabit Ethernet (GbE), and Fibre Channeloptical receivers that accept input levels of up to 2.0 V p-pdifferential and have 3 mV p-p differential input sensitivity. TheADN2890 provides the receiver functions of quantization andloss of signal (LOS) detection. The ADN2890 can easily operateat up to 3.2 Gb/s to support LX4 transceivers.The limiting amplifier also measures average received powerbased on a direct measurement of the photodiode current withbetter than 1 dB of accuracy over the entire input range of thereceiver. This eliminates the need for external average Rx powerdetection circuitry in SFF-8472 compliant optical transceivers.The ADN2890 limiting amplifier operates from a single 3.3 Vsupply, has low power dissipation, and is available in a space-saving 3 mm × 3 mm 16-lead lead frame chip scale package(LFCSP).

ADN2890ACP-RL7 APPLICATIONS

SFP/SFF/GBIC optical transceiversOC-3/12/48, GbE, Fibre Channel receivers10GBASE-LX4 transceiversWDM transponders