MAX3265CUE

Overview

The MAX3265CUE 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 and accepts a wide range of input voltages while providing constant-level output voltages with controlled edge speeds. The device features current-mode logic (CML) data outputs tolerant of inductive connectors, an RMS power detector with programmable loss-of-signal indication, and an optional squelch function. It is housed in a 16-pin TSSOP package with an exposed paddle.

Feature Summary

• Provides 2.5Gbps data rate performance with low deterministic jitter
• Features CML data outputs compatible with GBIC receivers
• Includes RMS power detection with programmable loss-of-signal threshold
• Offers optional squelch function to mute data output during signal loss

Applications

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

Procurement Notes

Verify the specific suffix 'CUE' indicates the commercial temperature range (0°C to +70°C) and 16-pin TSSOP-EP package configuration. Confirm lead-free status by checking for the '+' designation if required. Ensure compatibility with existing PCB footprints for the 16-pin Thin Shrink Small Outline Package with exposed thermal pad.

Selection Notes

Select this component when a 2.5Gbps data rate is required for optical receiver front-ends. The CML output interface is suitable for applications requiring tolerance to inductive connectors. Consider the MAX3264CUE if a lower 1.25Gbps speed is sufficient, or the MAX3265EUE for extended industrial temperature ranges (-40°C to +85°C).

Part Context

This part belongs to the MAX3264/MAX3265/MAX3268/MAX3269 family of limiting amplifiers manufactured by Maxim Integrated. The MAX3265 variant specifically targets 2.5Gbps applications, distinguishing it from the 1.25Gbps MAX3264. The 'C' suffix denotes the commercial temperature grade, while 'UE' specifies the 16-pin TSSOP package type.

Replacement Considerations

MAX3265EUE provides identical electrical specifications but supports an extended operating temperature range of -40°C to +85°C.