MAX3273 Datasheet | Maxim Integrated

Description The MAX3273 is a pact, low-power laser driver for applications up to 2.7Gbps. The device uses a single +3.3V supply and typically consumes 30m A. 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, secondgeneration Si Ge process. The MAX3273 accepts differential CML-patible clock and data input signals. Inputs are self-biased to allow AC-coupling. An input data-retiming latch can be enabled to reject input jitter if a clock signal is available. The driver can provide bias current up to 100m A and modulation current up to 60m AP-P with typical (20% to 80%) edge speeds of 59ps. A failure-monitor output is provided to indicate when the APC loop is unable to maintain average optical power. The MAX3273 is available in 4mm ✕ 4mm, 24-pin QFN and thin QFN packages, as well as in die form. Applications SONET OC-48 and SDH STM-16 Transmission Systems Add/Drop Multiplexers Digital Cross-Connects 2.5Gbps Optical Transmitters Pin Configurations appear at end of data sheet. Features - 30m A 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 5m A to 60m A - Programmable Bias Current from 1m A to 100m A - Typical Fall Time of 59ps - Selectable Data Retiming Latch - plies with ANSI, ITU, and Bellcore SDH/SONET Specifications Ordering Information PART TEMP RANGE PINPACKAGE PACKAGE CODE MAX3273EGG -40°C to +85°C 24 QFN (4mm 4mm) G2444-1 MAX3273ETG+ -40°C to +85°C 24 Thin QFN (4mm 4mm) T2444-2 MAX3273E/D -40°C to +85°C Dice- - - Dice are designed to operate from TA = -40°C to +85°C, but are tested and guaranteed at TA = +25°C only. +Denotes lead-free package. Typical Application Circuit DATA + DATA 2.5Gbps SERIALIZER WITH CLOCK...