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