MAX3800UHJ-G002

Overview

The MAX3800UHJ-G002 is an adaptive equalizer and cable driver manufactured by Analog Devices under the Maxim Integrated brand. It supports data rates up to 3.2 Gbps for signal integrity restoration on copper media. The component operates within a supply voltage range of 3.14V to 3.46V and draws a typical operating current of 65 mA. It functions reliably across an extended commercial temperature range from 0°C to +85°C. The device delivers an output current of 25 mA with a maximum power dissipation of 1.444 W. It is housed in a 32-lead TQFP package with an exposed pad (TQFP-EP-32), measuring 5x5 mm, designed for surface-mount installation.

Feature Summary

• Adaptive equalization technology automatically adjusts to channel characteristics without manual configuration
• Integrated cable driver provides sufficient signal amplitude for transmission over lossy copper links
• Single-channel architecture simplifies board layout and reduces system component count

Applications

• Equalizing gigabit-per-second signals on copper media
• Restoring signal integrity in high-speed serial communication links
• Compensating for attenuation in twisted pair cabling systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to discontinued status. Confirm RoHS compliance details as documentation indicates non-compliance for this specific suffix variant. Validate that the 32-TQFP-EP package matches design requirements before procurement. Check for obsolescence notices or last-time buy notifications from Analog Devices. Ensure supply chain stability given the limited availability of end-of-life inventory.

Selection Notes

Select this component when designing interfaces requiring automatic equalization for 3.2 Gbps data rates. Ensure the PCB layout accommodates the 32-lead TQFP-EP package dimensions. Verify that the power supply can maintain the specified 3.14V to 3.46V range under all load conditions. Consider thermal management strategies to handle the 1.444 W power dissipation within the 0°C to +85°C operating window. Confirm compatibility with the target copper cable specifications for optimal equalization performance.

Part Context

The MAX3800 belongs to a family of equalizers designed for high-speed serial applications. It addresses signal degradation caused by frequency-dependent losses in copper interconnects. The device integrates both equalization and driving stages into a single solution. This integration reduces the complexity of signal conditioning circuits in gigabit Ethernet and similar high-speed interface designs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The MAX3800UHJ+ is a related variant within the same series but requires verification of functional equivalence. Consult Analog Devices technical support for qualified replacements for the discontinued MAX3800UHJ-G002.