AL2510D28/56GBaud Linear TIA Amplifier

AL2510D is a high sensitivity 28/56GBaud linear trans-impedance amplifier (TIA) suitable for 100Gb/s, 200Gb/s and 400Gb/s Ethernet PMD with PAM-4 modulation format. It consists of an automatic gain control (AGC) loop with an option of manual gain control (MGC). The linear TIA has a bandwidth of 35GHz with less than 3% total harmonic distortion for up to 4mApp of input AC current and additionally features of bandwidth/peaking adjustment. AL2510D offers very high sensitivity due to its low input referred noise density of 11pA/√Hz. It also includes the functions of received-signal-strength-indicator (RSSI) and output amplitude monitor.

Features

•    Supports serial data rates up to 112Gb/s
•    5.5KΩ transimpedance gain
•    Input-referred noise density: 11pA/√Hz
•    4mA_pp overload current
•    Up to 600 mVpp differential output amplitude
•    Operating in two modes: AGC and MGC
•    Bandwidth/peaking adjustment, 35GHz bandwidth (Typ.)
•    Photodiode (Cathode) bias voltage
•    Received-Signal-Strength-Indicator (RSSI)
•    Output amplitude detector
•    Single power supply of +3.3V
•    150mW total power dissipation
•    Die size: 0.85mm x 1.25mm

Applications

•    100G Ethernet PMD: 100GBASE-DR1/FR1 and 400GBASE-DR4/FR4
•    Serial 100G and 4x100G Optical Modules
•    50G PAM-4 receiver for 5G Wireless Backhaul Applications