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MAX4999：USB 2.0 Hi-Speed Differential 8:1 Multiplexer

Industry's First 8:1 USB Mux Supports USB 2.0 Hi-Speed Data Rates for Extremely Fast Switching

The MAX4999 differential Hi-Speed USB analog multiplexer features low on-capacitance (CON) switching, making it an ideal solution for the USB server/mass storage market. The MAX4999 is designed for USB 2.0 low-/full-/Hi-Speed applications with capability of supporting data rates up to 480Mbps. The MAX4999 is a differential 8:1 multiplexer. The MAX4999 features three digital inputs to control the signal path. Typical applications include switching a USB connector between eight USB hosts and a USB device. An enable input (EN) is provided to disable all channels and place the device into a high-impedance state (standby mode), shutting off the charge pump for minimum power consumption. The MAX4999 operates from a +3.0V to +3.6V power-supply voltage and is specified over the -40°C to +85°C extended temperature range. The MAX4999 is available in a 5mm x 5mm, 32-pin TQFN package.

Key Features Increased Flexibility and Performance Multiplexer Supports USB 2.0 Standard -3dB Bandwidth: 1200MHz (typ) Low On-Resistance and Power Management Features Minimize System Losses 6.5Ω (typ) On-Resistance (RON) Single +3.0V to +3.6V Power-Supply Voltage Enable Input Puts All Channels in High-Impedance State (Standby Mode) Low Operating Current (1µA) and Ultra-Low Quiescent Current (30nA) in Standby Mode Reduce Component Count and Design Complexity Low Threshold Eliminates the Need for Translators in 1.8V Low-Voltage Systems Saves Board Space 32-Pin, 5mm x 5mm, TQFN Package

MAX4999: Functional Diagram Applications/Uses Keyboard, Video, Mouse (KVM) Mass Storage Servers/RAID Workstations

DataSheet

Parametrics

Quality and Environmental Data

• MAX4999.pdf

Ordering Information