MAX3766

LAST TIME BUY

622Mbps LAN/WAN Laser Driver with Automatic Power Control and Safety Shutdown

Provides Up to 60mA Modulation Current and 80mA Bias Current

Data Sheet (Rev. 1) Product Selection Table
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Overview

  • 60mA Modulation Current
  • 80mA Bias Current
  • 200ps Edge Speed
  • Modulation-Current Temperature Compensation
  • Automatic Power Control
  • Laser-Fail Indicator with Latched Shutdown
  • Smooth Laser Start-Up

The MAX3766 is a complete, easy-to-program laser driver for fiber optic LAN transmitters, optimized for operation at 622Mbps. It includes a laser modulator, automatic power control (APC), and a failure indicator with latched shutdown.

Laser modulation current can be programmed up to 60mA at 622Mbps. A programmable modulation temperature coefficient can be used to keep the transmitted extinction ratio nearly constant over a wide temperature range. The modulator operates at data rates up to 1.25Gbps at reduced modulation current. APC circuitry uses feedback from the laser's monitor photodiode to adjust the laser bias current, producing constant output power regardless of laser temperature or age. The MAX3766 supports laser bias currents up to 80mA.

The MAX3766 provides extensive laser safety features, including a failure indicator with latched shutdown and a smooth start-up bias generator. These features help ensure that the transmitter output does not reach hazardous levels. The MAX3766 is available in a compact 20-pin QSOP and dice.

Applications

  • 1.25Gbps Ethernet Transmitters
  • 1.25Gbps Fiber Optic LAN Transmitters
  • 622Mbps ATM Transmitters
MAX3766
622Mbps LAN/WAN Laser Driver with Automatic Power Control and Safety Shutdown
MAX3766: Typical Application Circuits
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Documentation

Data Sheet 1

Reliability Data 1

Application Note 2

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Hardware Ecosystem

Parts Product Life Cycle Description
Limiting Amplifiers 2
MAX3762
Obsolete Low-Power, 622Mbps Limiting Amplifiers with Chatter-Free Power Detect for LANs
MAX3761
Obsolete Low-Power, 622Mbps Limiting Amplifiers with Chatter-Free Power Detect for LANs
Transimpedance Amplifiers (TIA) 1
MAX3658
NOT RECOMMENDED FOR NEW DESIGNS 622Mbps, Low-Noise, High-Gain Transimpedance Preamplifier
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Evaluation Kits

MAX3766EVKIT

Evaluation Kit for the MAX3766

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Features and Benefits

  • Adjustable Modulation Temperature Coefficient
  • Automatic Safety Reset Delay with MAX809M
  • Automatic Power Control Evaluation in Electrical and Optical Configuration
  • Dual Layout Option on Single Board
  • Fully Assembled and Tested

Product Details

The MAX3766 evaluation kit (EV kit) is an assembled, surface-mount demonstration board that provides easy optical or electrical evaluation of the MAX3766 622Mbps laser driver.

Applications

  • 1.25Gbps Ethernet Transmitters
  • 1.25Gbps Fiber Optic LAN Transmitters
  • 622Mbps ATM Transmitters
MAX3766EVKIT
Evaluation Kit for the MAX3766

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