MAX4892EETX+

Analog Switches - Special Purpose Overview

The MAX4892EETX+ is a high-speed analog switch IC designed for Gigabit Ethernet (10/100/1000 Base-T) and LVDS/LVPECL signal routing. It features eight differential SPDT switches within a 36-pin TQFN package. The device operates on a single +3.0V to +3.6V supply with a maximum quiescent current of 450µA. Key electrical parameters include a typical on-resistance of 4Ω, an ultra-low on-capacitance of 8pF, and a -3dB bandwidth of 650MHz. It provides ±15kV ESD protection per MIL-STD-883 Method 3015 and includes three built-in LED switches for docking station applications.

Analog Switches - Special Purpose Feature Summary

• Enhanced electrostatic discharge protection rated at ±15kV per MIL-STD-883 Method 3015.
• Ultra-low on-capacitance and low on-resistance for minimal insertion loss and wide bandwidth.
• Integrated LED switching capability for routing indicator signals in laptop and docking station designs.

Analog Switches - Special Purpose Applications

• Notebooks and docking stations
• Servers and routers with Ethernet interfaces
• Board-level redundancy protection
• SONET/SDH signal routing
• T3/E3 redundancy protection

Analog Switches - Special Purpose Procurement Notes

Verify the component status as discontinued or obsolete through official manufacturer channels before finalizing design-in decisions. Confirm that the lead-free package designation (+) aligns with environmental compliance requirements such as RoHS standards. Ensure the 36-pin TQFN footprint matches the PCB layout specifications exactly.

Analog Switches - Special Purpose Selection Notes

Select this component when designing systems requiring high-speed differential switching for 1000 Base-T Ethernet or LVDS interfaces. The MAX4892E is specifically chosen over the MAX4890E when integrated LED switching functionality is required for docking station indicators. Ensure the application environment remains within the specified -40°C to +85°C operating temperature range.

Analog Switches - Special Purpose Part Context

This part belongs to the MAX4890E/MAX4892E family of 1000 Base-T LAN switches. It serves as the enhanced ESD version of the standard MAX4892, offering pin-for-pin compatibility while providing superior protection against electrostatic discharge shocks compared to its predecessors.

Analog Switches - Special Purpose Replacement Considerations

The MAX4890E/MAX4892E are pin-for-pin equivalents to the non-E versions (MAX4890/MAX4892). They can replace these devices where enhanced ESD protection is required without altering the board layout.

Analog Switches - Special Purpose FAQ

What is the specific ESD protection rating for the MAX4892EETX+?

The device provides ±15kV ESD protection per MIL-STD-883, Method 3015, measured using the Human Body Model.

How does the MAX4892E differ from the MAX4890E?

The MAX4892E includes three built-in LED switches for routing indicator signals to a docking station, whereas the MAX4890E does not have this feature.

What is the typical on-resistance of the main Ethernet switches?

The typical on-resistance (RON) is 4Ω, with a maximum of 6.5Ω under specified conditions.