MAX3265CUB

Overview

The MAX3265CUB is a 2.5Gbps limiting amplifier designed for Gigabit Ethernet and Fibre Channel optical receiver systems. It operates from a +3.0V to +5.5V supply voltage within the 0°C to +70°C temperature range. The device features current-mode logic (CML) data outputs with controlled edge speeds and low deterministic jitter. It includes an RMS power detector with programmable loss-of-signal indication and accepts a wide range of input voltages while providing constant-level output voltages.

Feature Summary

• Provides CML data outputs tolerant of inductive connectors
• Integrates RMS power detection with programmable loss-of-signal indication
• Features offset correction loop for low deterministic jitter performance

Applications

• Gigabit Ethernet Optical Receivers
• Fibre Channel Optical Receivers
• System Interconnect
• ATM Optical Receivers

Procurement Notes

Verify the specific suffix 'CUB' corresponds to the 10-pin µMAX package and commercial temperature range. Confirm lead-free status if '+CUB' is specified. Ensure compatibility with GBIC or SFF receiver designs requiring CML outputs. Check for updated RoHS compliance documentation as manufacturing processes evolve.

Selection Notes

Select this component when CML outputs are required for the application interface. The 10-pin µMAX package is suitable for small-form-factor receivers. Verify that the 2.5Gbps data rate meets system requirements, as the 1.25Gbps variants differ in electrical characteristics. Ensure the operating temperature range aligns with the environmental conditions.

Part Context

This part belongs to the MAX3264/MAX3265/MAX3268/MAX3269 family of limiting amplifiers. It shares functional similarities with other members but differs in data rate and output interface. The MAX3265 variant specifically provides 2.5Gbps performance with CML outputs, distinguishing it from the PECL-output MAX3268/3269 series.

Replacement Considerations

Public confirmed substitute part numbers: MAX3265EUE, MAX3765CUB.