The ADN2531 is a 11.3Gbps laser diode driver that supports 3.3V operation, has a 26ps rise/fall time, supports 10mA to 100mA bias current range and 10mA to 80mA differential modulation current range.
The ADN2531 laser diode driver from Analog Devices operates from 3.0 V to 3.6 V and supports directly‑modulated VCSEL, FP and DFB lasers. It offers active back‑termination, automatic laser shutdown (ALS), and cross‑point adjustment for excellent eye‑diagram performance even with mismatched transmission lines.
The device is supplied in a compact 3 mm × 3 mm LFCSP package, rated for –40 °C to +100 °C, and includes bias‑current (BSET), modulation‑current (MSET), and ALS control pins. Detailed electrical specifications, pin descriptions, and typical performance graphs are provided for system designers.
| Bias Current Range | 10 mA – 100 mA |
|---|---|
| Modulation Current Range | 10 mA – 80 mA |
| Rise Time (20%‑80%) | 26 ps |
| Fall Time (20%‑80%) | 26 ps |
| Random Jitter | < 0.5 ps rms |
| Deterministic Jitter (11.3 Gbps) | 8.2 ps p‑p |
| Input Data Rate | 11.3 Gbps NRZ |
| Differential Input Swing | 0.15 V‑p‑p diff |
| Supply Voltage (VCC) | 3.0 V – 3.6 V |
| Operating Temperature | –40 °C to +100 °C |
The bias current can be set between 10 mA and 100 mA.
It supports an input data rate of up to 11.3 Gbps NRZ.