Maxim > Products > Analog Switches and Multiplexers > MAX4890E, MAX4892E

MAX4890E, 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

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

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 (C_ON), as well as low resistance (R_ON), 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.

Data Sheet

Download	Rev 0	(PDF, 1.3MB)
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Key Features

±15kV ESD Protected Per MIL-STD-883, Method 3015
Single +3.0V to +3.6V Power-Supply Voltage
Low On-Resistance (R_ON): 4Ω (typ), 6.5Ω (max)
Ultra-Low On-Capacitance (C_ON): 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

32-Pin, 5mm x 5mm, TQFN Package
36-Pin, 6mm x 6mm, TQFN Package

Applications/Uses

Board-Level Redundancy Protection
Notebooks and Docking Stations
Servers and Routers with Ethernet Interfaces
SONET/SDH Signal Routing
T3/E3 Redundancy Protection

Key Specifications:

Switches and Multiplexers (Mid Voltage)

Part Number

Protocol

Functions

Config.

Channels

Normal Position

V_SUPPLY (Single)
(V)

R_ON
(Ω)

BW
(MHz)

t_ON
(ns)

t_OFF
(ns)

C_ON
(pF)

C_OFF
(pF)

Budgetary Price

min

max

min

max

See Notes

MAX4890E

LAN

Mux

2:1

Closed

3.6

6.5

650

6.5

3.5

$2.28 @1k

MAX4892E

$2.65 @1k

See All Switches and Multiplexers (Mid Voltage) (302)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Operating Circuit

Product Guides

Signal Routing & Protection (PDF)

Reliability Reports

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Software/Models

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Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4890EETJ			Active	TQFN;32 pin;26 mm² Outline Drawing:21-0140 (PDF) Land Pattern: 90-0012 (PDF) Use pkgcode/variation: T3255-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4890EETJ+			Active	TQFN;32 pin;26 mm² Outline Drawing:21-0140 (PDF) Land Pattern: 90-0012 (PDF) Use pkgcode/variation: T3255+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4890EETJ+T			Active	TQFN;32 pin;26 mm² Outline Drawing:21-0140 (PDF) Land Pattern: 90-0012 (PDF) Use pkgcode/variation: T3255+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4890EETJ-T			Active	QFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4892EETX			Active	TQFN;36 pin;37.2 mm² Outline Drawing:21-0141 (PDF) Land Pattern: 90-0050 (PDF) Use pkgcode/variation: T3666-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4892EETX+			Active	TQFN;36 pin;37.2 mm² Outline Drawing:21-0141 (PDF) Land Pattern: 90-0050 (PDF) Use pkgcode/variation: T3666+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4892EETX+T			Active	QFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4892EETX-T			Active	QFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Similar Products by Function

MAX4890, MAX4891, MAX4892	10/100/1000 Base-T Ethernet LAN Switch
See All Switches and Multiplexers (Mid Voltage) (305 Products)

Similar Products by Application

Computers: Notebooks > LAN

Docking Station > Local Area Network (LAN)

Products with Similar Part Numbers

MAX4890, MAX4891, MAX4892

10/100/1000 Base-T Ethernet LAN Switch

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-0624 Rev 0; 2006-08-16
This page last modified: 2006-11-27