Maxim > Products > Analog Switches and Multiplexers > MAX4885

MAX4885

Complete VGA 1:2 or 2:1 Multiplexer

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX4885 integrates high-bandwidth analog switches and level translating buffers to implement a complete 1:2 or 2:1 multiplexer for VGA signals. The device provides switching for RGB, display data channel (DDC), and horizontal and vertical synchronization (HSYNC, VSYNC) signals. A low-noise charge pump with internal capacitors provides a boosted gate-drive voltage to improve performance of the RGB switches.

In the 1:2 multiplexer mode, HSYNC/VSYNC inputs feature level-shifting buffers to support low voltage CMOS or standard TTL-compatible graphics controllers. In the 2:1 multiplexer mode, the output buffers for the HSYNC/VSYNC inputs are disabled, allowing bidirectional signaling. In both modes, DDC signals are voltage-clamped to an external voltage to provide level translation and protection. The MAX4885 features a 5µA shutdown mode and is ESD protected to ±8kV human body model (HBM) on externally routed pins.

The MAX4885 is specified over the extended (-40°C to +85°C) temperature range, and is available in the 32-pin, 5mm x 5mm TQFN package.

Data Sheet

Download	Rev 0	(PDF, 304kB)
E-Mail

An evaluation kit is available: MAX4885EVKIT

Key Features

+5V Single-Supply Operation
Programmable Voltage Clamp for Open-Drain DDC Signals
Low 5Ω (typ) On-Resistance (R, G, B Signals)
Low 13pF (typ) On-Capacitance (R, G, B Signals)
Break-Before-Make Switching Protects Against Circuit Shorts
Low 300µA Supply Current (Lower than 1µA with Charge Pump Disabled)
Space-Saving, Lead-Free 32-Pin (5mm x 5mm) TQFN Package

Applications/Uses

Notebook Computers
Servers

Key Specifications:

Switches and Multiplexers (Mid Voltage)

Part Number

Protocol

Functions

Config.

Channels

V_SUPPLY (Single)
(V)

R_ON
(Ω)

BW
(MHz)

I_L(OFF)
(nA)

t_ON
(ns)

t_OFF
(ns)

Q_INJECTION
(pC)

C_ON
(pF)

C_OFF
(pF)

Budgetary Price

min

max

min

max

See Notes

MAX4885

VGA

Mux

2:1

4.5

5.5

350

1000

7000

100

$1.41 @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

Application Notes

Application Note 4653		FAQs about Analog Switches
Reference Design 4805		VGA 8:1 Multiplexer Reference Design Using the MAX4885

Product Guides

Signal Routing & Protection (PDF)

Reliability Reports

Reliability Report:	MAX4885.pdf
Show FIT data for:

Software/Models

MAX4885 IBIS Model

MAX4885 Macromodel

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
MAX4885ETJ			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
MAX4885ETJ+			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
MAX4885ETJ+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
MAX4885ETJ-T			Active	QFN;32 pin 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

MAX4887	Triple Video Switch
See All Switches and Multiplexers (Mid Voltage) (305 Products)

Evaluation Kits

MAX4885EVKIT

Evaluation Kit for the MAX4885

Products with Similar Part Numbers

MAX4885E	Ultra Low-Capacitance VGA Switch with ±15kV ESD
MAX4885EVKIT	Evaluation Kit for the MAX4885
MAX4885AEEVKIT	Evaluation Kit for the MAX4885AE
MAX4885AE	High-Bandwidth, VGA 2:1 Switch with ±15kV ESD Protection
MAX4885EEVKIT	Evaluation Kit for the MAX4885E

More Information

New Product Press Release

[ 2006-06-05 ]

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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.: 19-0554 Rev 0; 2006-05-22
This page last modified: 2007-12-07