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, providing constant-level output voltages with controlled edge speeds. The device features current-mode logic (CML) data outputs tolerant of inductive connectors and is housed in a 16-pin TSSOP package with an exposed paddle. Key specifications include low deterministic jitter of 11ps typical and random jitter of 8ps RMS.

Feature Summary

• Provides CML data outputs suitable for GBIC receivers
• Includes programmable loss-of-signal indication via RMS power detection
• Features optional squelch function to mute data output when signal falls below threshold
• Offers excellent jitter performance with integrated offset correction

Applications

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

Procurement Notes

Verify the component matches the specific MAX3265CUE+ designation, noting the lead-free (+) suffix and commercial temperature range (0°C to +70°C). Confirm the 16-pin TSSOP-EP package type. Ensure compatibility with existing circuit designs regarding the exposed paddle grounding requirements and CML termination schemes.

Selection Notes

Select this part for applications requiring 2.5Gbps data rates with CML outputs. Compare against the MAX3264 series if 1.25Gbps operation is sufficient, or the MAX3268/MAX3269 series if PECL outputs are preferred. Consider the MAX3265EUE+ variant if extended industrial temperature ranges (-40°C to +85°C) are required instead of the commercial grade.

Part Context

This component belongs to the Maxim Integrated MAX3264/MAX3265/MAX3268/MAX3269 family of high-speed limiting amplifiers. These devices are engineered specifically for optical receiver front-ends in telecommunications and data communication networks. The family shares similar internal architectures but varies in data rate, output interface type (CML vs. PECL), and package options.

Replacement Considerations

MAX3265EUE+