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AL2240DQuad-Channel 28GBaud Limiting TIA

AL2240D is a high sensitivity 4-channel 28Gb/s trans-impedance amplifier (TIA) array with channel space of 750μm.  Each amplifier has 9k of small-signal differential trans-impedance gain. The quad TIA consumes a total of 0.5W using a 3.3V power supply. AL2240D offers very high dynamic range due to its high input overload of 5mApp. Each TIA provides a photodiode bias voltage and an accurate received-signal-strength-indicator (RSSI) to monitor the average photodiode current. This TIA also provides a bandwidth/peaking adjustment function to allow the user to optimize optical receiver frequency response.


•    Supports data rates up to 28Gb/s
•    9kΩ transimpedance gain
•    5mApp overload current
•    600mVpp differential output amplitude
•    Photodiode (Cathode) bias voltage
•    Received-Signal-Strength-Indicator (RSSI)
•    Single power supply of  +3.3V
•    0.5W total power dissipation
•    Die size: 3.2mm x 1.6mm


•    100GbE-LR4/ER4
•    CFP/CFP2 transceivers


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Aluksen Optoelectronics is a global leading supplier in analog semiconductor chip industry, specializing in designing, developing, manufacturing, selling analog and mix-signal integrated optoelectronic circuits chip, focusing on long-haul core network, DCI, 5G carrier and FTTx etc optical communication and interconnection areas.

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