Maxim Integrated Products introduces the MAX4927 quad, high-speed, high-bandwidth, Gigabit-LAN switch.

This device switches signals from two separate interface transformers and connects them to a single, 1000 Base-T Ethernet PHY. According to Maxim, it integrates robust, ESD-protection structures that eliminate the need for external ESD diodes while meeting the following ESD-protection specifications: ±15kV IEC 61000-4-2 Air-Gap Discharge, ±8kV IEC 61000-4-2 Contact Discharge, and ±15kV Human Body Model.

The MAX4927 also includes LED switches that allow LED output signals to be routed to a docking station along with Ethernet signals. Available in an industry-standard, 5mm x 11mm, 56-pin TQFN package, the MAX4927 is ideal for upgrading the performance of applications that require LED and Ethernet signal switching, such as notebooks and docking stations.

Based on an n-channel MOSFET architecture, the MAX4927 includes an efficient, internal charge pump that features ultra-low quiescent current for power-sensitive designs. Unlike other charge-pump circuits, this device includes internal flyback capacitors that reduce design time, board space, and cost. The MAX4927's advanced architecture enables it to achieve extremely low 8.0pF on-capacitance and 4 ohm on-resistance to meet Ethernet insertion and return-loss specifications.

The MAX4927 operates from a single 3.0V to 3.6V supply and is fully specified over the -40 degrees Celsius to +85 degrees Celsius extended temperature range. Prices start at $1.00 (1000-up, FOB USA).

A Data Sheet for this product is available on the web: www.maxim-ic.com/MAX4927