The ADN2880 is a 3.3 V, low noise, transimpedance amplifier with a bandwidth of 3.2 Gbps and a differential transimpedance of 4400 V/A. It is suitable for 3.2 Gbps or below optical receivers, SONET/GbE/FC optical receivers, and PIN/APD-TIA receive optical subassemblies (ROSA).
The ADN2880 is a high‑gain SiGe transimpedance amplifier (TIA) that converts the small current of a photodiode into a differential voltage. It operates from a 3.3 V supply, provides a typical input‑referred noise of 315 nA, and includes an on‑chip RC filter (200 Ω, 20 pF) with a 20 kHz low‑frequency cutoff.
Designed for 3.2 Gbps or lower optical receivers, the device is offered in die form with a 0.7 mm × 1.2 mm footprint and is suitable for TO‑46 or TO‑CAN packages. Applications include SONET, GbE, FC optical receivers and SFF‑8472‑compliant modules.
| Bandwidth | 2.5 GHz |
|---|---|
| Optical sensitivity | -24.2 dBm |
| Power dissipation | 70 mW |
| Differential transimpedance | 4400 V/A |
| Low frequency cutoff | 20 kHz |
| Input overload current | 4.3 mA p‑p |
The device operates with a minimum/maximum VCC of 3.3 V ± 0.3 V.
The absolute maximum input current rating is 10 mA.