MAX3738ETG+

Overview

The MAX3738ETG+ is a laser driver integrated circuit designed for Small Form-factor Pluggable (SFF) and SFP optical transceivers. It supports data rates ranging from 155 Mb/s to 4.25 Gb/s. The device operates on a single 3.3 V power supply with a typical operating current of 47 mA. It features an extinction ratio control function to maintain signal integrity. The component is housed in a 24-pin TQFN package measuring 4 mm by 4 mm, suitable for surface-mount installation. It functions within a temperature range of -40°C to +85°C.

Feature Summary

• Supports multirate operation from 155 Mbps to 4.25 Gbps for SFF/SFP applications
• Includes integrated extinction ratio control for optimized optical performance
• Operates on a single 3.3V power supply with low quiescent current

Applications

• Small Form-factor Pluggable (SFP) optical transceivers
• Single-Mode Fiber (SMF) transmission systems
• Multimode Fiber (MMF) transmission systems

Procurement Notes

Verify the specific suffix and revision level against the manufacturer's latest datasheet to ensure compatibility with current manufacturing standards. Confirm RoHS compliance status as required by your regional regulations. Check official distributor channels for availability, as this component may be subject to limited stock or discontinuation notices. Validate that the TQFN-24 package matches your PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this driver when designing SFP modules requiring support for high-speed data rates up to 4.25 Gbps. Ensure the application environment stays within the specified -40°C to +85°C operating temperature range. Verify that the system power budget accommodates the 3.3V supply and 47mA operating current. Consider the thermal dissipation capabilities of the TQFN-24 package for your specific board layout constraints.

Part Context

This component belongs to the MAX3738 series of laser drivers manufactured by Analog Devices Inc./Maxim Integrated. It is part of a family of devices tailored for fiber optic communication interfaces. The series includes variants supporting different speed grades and packaging options. These drivers are essential for converting electrical signals into optical transmissions in standard networking hardware.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official obsolescence notices or cross-reference guides for potential alternatives if this specific part number becomes unavailable.