MAX4892E:1000 Base-T, ±15kV ESD Protection LAN Switches

High-Speed Analog Switches for Gigabit Ethernet Applications that Switch the Signals from Two Interface Transformers and Connect Them to a Single Ethernet Controller

The MAX4890E/MAX4892E meet the needs of high-speed differential switching. The devices handle the needs of Gigabit Ethernet (10/100/1000) Base-T switching as well as LVDS and LVPECL switching. The MAX4890E/MAX4892E provide enhanced ESD protection up to ±15kV, and excellent high-frequency response, making the devices especially useful for interfaces that must go to an outside connection. Both devices provide extremely low capacitance (CON), as well as low resistance (RON), for low-insertion loss and very wide bandwidth. In addition to the four pairs of DPDT switches, the MAX4892E provides LED switching for laptop computer/docking station use. The MAX4890E/MAX4892E are pin-for-pin equivalents to the MAX4890/MAX4892 and can replace these devices for those applications requiring the enhanced ESD protection. Both devices are available in space-saving TQFN packages and operate over the standard -40°C to +85°C temperature range.

Key Features
  • ±15kV ESD Protected Per MIL-STD-883, Method 3015
  • Single +3.0V to +3.6V Power-Supply Voltage
  • Low On-Resistance (RON): 4Ω (typ), 6.5Ω (max)
  • Ultra-Low On-Capacitance (CON): 8pF (typ)
  • -23dB Return Loss (100MHz)
  • -3dB Bandwidth (650MHz)
  • Optimized Pin Out for Easy Transformer and PHY Interface
  • Built-In LED Switches for Switching Indicators to Docking Station (MAX4892E)
  • Low 450µA (max) Quiescent Current
  • Bidirectional 8 to 16 Multiplexer/Demultiplexer
  • Standard Pin Out, Matching the MAX4890 and MAX4892
  • Space-Saving Lead-Free Packages
MAX4890E, MAX4892E: Typical Operating Circuit
MAX4890E, MAX4892E: Typical Operating Circuit
Applications/Uses
  • Board-Level Redundancy Protection
  • Notebooks and Docking Stations
  • Servers and Routers with Ethernet Interfaces
  • SONET/SDH Signal Routing
  • T3/E3 Redundancy Protection
DataSheet
titleDownload file
MAX4890E-MAX4892E Data SheetMAX4890E-MAX4892E.pdf
Parametrics
Part NumberProtocolFunctionsConfig.ChannelsNormal PositionVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
RON
(Ω)
Bandwidth
(MHz)
tON
(ns)
tOFF
(ns)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
minmaxmaxminmaxSee Notes
MAX4890ELANMux2-to-18Closed33.66.565050506.53.5TQFN/32$3.10 @1k
MAX4892ETQFN/36
Quality and Environmental Data
Related Products
  • MAX4892:10/100/1000 Base-T Ethernet LAN Switch
  • MAX4890:10/100/1000 Base-T Ethernet LAN Switch
  • MAX4891:10/100/1000 Base-T Ethernet LAN Switch
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4892EETXNo Longer AvailableMAX4892EETX+TQFN,;36 pin;37.2 mm²-40°C to +85°CNo
MAX4892EETX+ActiveTQFN,;36 pin;37.2 mm²-40°C to +85°CLead Free
MAX4892EETX+TActiveTQFN,;36 pin;37.2 mm²-40°C to +85°CLead Free
MAX4892EETX-TNo Longer AvailableMAX4892EETX+TQFN;-40°C to +85°CSee data sheet
MAX4890E-MAX4892E.pdf MAX4892E
MAX4892E.pdf MAX4892E
MAX4890E-MAX4892E.pdf MAX4890E