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Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 176kB) Download   E-Mail

Description

The MAX4890/MAX4891/MAX4892 high-speed analog switches meet the needs of 10/100/1000 Base-T applications. These devices switch the signals from two interface transformers and connect the signals to a single 10/100/1000 Base-T Ethernet PHY, simplifying docking station design and reducing manufacturing costs. The MAX4890/MAX4891/MAX4892 can also route signals from a common interface transformer to two different boards in board-redundancy applications. The MAX4890/MAX4891/MAX4892 switches provide an extremely low capacitance and on-resistance to meet Ethernet insertion and return-loss specifications. The MAX4891/MAX4892 feature one and three built-in LED switches, respectively. The MAX4890/MAX4891/MAX4892 are available in space-saving 32- and 36-lead TQFN packages, significantly reducing the required PC board area. These devices operate over the -40°C to +85°C temperature range.

Key Features		Applications/Uses
Single +3.0V to +3.6V Power-Supply Voltage Low On-Resistance (RON): 4Ω (typ), 6.5Ω (max) Ultra-Low On-Capacitance (CON): 6.5pF (typ) Low < 200ps Bit-to-Bit Skew -3dB Bandwidth: 1GHz Optimized Pin-Out for Easy Transformer and PHY Interface Built-In LED Switches for Switching Indicators to Docking Station Low 450µA (max) Quiescent Current Bidirectional 8 to 16 Multiplexer/Demultiplexer Space-Saving Packages 32-Pin, 5mm x 5mm, TQFN Package 36-Pin, 6mm x 6mm, TQFN Package		Board-Level Redundancy Protection Notebooks and Docking Stations Servers and Routers with Ethernet Interfaces SONET/SDH Signal Routing T3/E3 Redundancy Protection Video Routing and Switching Systems

Diagram

Typical Operating Circuit

Reliability Reports

Reliability Report: MAX4890.pdf Show FIT data for: MAX4890 MAX4891 MAX4892 Request Reliability Report for: MAX4891 MAX4892

Software/Models

MAX4890COFF Test Circuit File MAX4890CON Test Circuit File MAX4890 IBIS Model MAX4890 Macromodel MAX4890 Orcad Library MAX4891 Macromodel MAX4891 IBIS Model MAX4891 Orcad Library MAX4891COFF Test Circuit File MAX4891CON Test Circuit File MAX4892COFF Test Circuit File MAX4892CON Test Circuit File MAX4892 Macromodel MAX4892 Orcad Library MAX4892 IBIS Model

Ordering Information

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. More: SeeFull Data Sheet or Part 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.

Devices: 1-12 of 12

MAX4890	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4890ETJ			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
MAX4890ETJ-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4890ETJ+			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
MAX4890ETJ+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
MAX4891	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4891ETJ+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
MAX4891ETJ+			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
MAX4891ETJ			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
MAX4891ETJ-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4892	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4892ETX			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
MAX4892ETX-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4892ETX+			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
MAX4892ETX+T			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

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