General Description
The MAX3273 is a compact, low-power laser driver for applications up to 2.7Gbps. The device uses a single +3.3V supply and typically consumes 30mA. The bias and modulation current levels are programmed by external resistors. An automatic power-control (APC) loop is incorporated to maintain a constant average optical power over temperature and lifetime. The laser driver is fabricated using Maxim’s in-house, second generation SiGe process.

Features
♦ 30mA Power-Supply Current
♦ Single +3.3V Power Supply
♦ Up to 2.7Gbps (NRZ) Operation
♦ Automatic Average Power Control with Failure Monitor
♦ Programmable Modulation Current from 5mA to 60mA
♦ Programmable Bias Current from 1mA to 100mA
♦ Typical Fall Time of 59ps
♦ Selectable Data Retiming Latch
♦ Complies with ANSI, ITU, and Bellcore SDH/SONET Specifications

Applications
    SONET OC-48 and SDH STM-16 Transmission Systems
    Add/Drop Multiplexers
    Digital Cross-Connects
    2.5Gbps Optical Transmitters