MAX4885AE

High-Bandwidth, VGA 2:1 Switch with ±15kV ESD Protection

Allows for a Signal From One Video Source to Be Switched into Two Video Sinks with Increased Bandwidth and ESD Protection


Description

The MAX4885AE integrates high-bandwidth analog switches, level-translating buffers, and level-translating FET switches to implement a complete 2:1 multiplexer for VGA signals. The device provides three very high-frequency 900MHz (typ) SPDT switches for RGB signals, two low-frequency clamping switches for the DDC signals, a pair of level-translating buffers for the H and V signals and integrated extended ESD protection.

Horizontal and vertical synchronization (H_/V_) inputs feature level-shifting buffers to support low-voltage controllers and standard 5V-TTL-compatible monitors, meeting the VESA requirement. Display Data Channel (DDC), consisting of SDA_ and SCL_, are FET switches that protect the low-voltage VGA source from potential damage from high-voltage presence on the monitor while reducing capacitive load.

All seven output terminals of the MAX4885AE feature high-ESD protection to ±15kV Human Body Model (HBM) (see the Pin Description in the full data sheet). All other pins are protected to ±2kV Human Body Model (HBM).

The MAX4885AE is specified over the extended -40°C to +85°C temperature range, and is available in a space-saving, 28-pin, 4mm × 4mm TQFN package.
MAX4885AE: Typical Operating Circuit MAX4885AE: Typical Operating Circuit Enlarge+

Key Features

  • Low 5Ω (typ) On-Resistance (R, G, B Signals)
  • Low 5.5pF (typ) On-Capacitance (R, G, B Signals)
  • Independent, Selectable Logic Inputs for Switching
  • Similar Pin Configuration to MAX4885
  • Ultra-Small, 28-Pin (4mm x 4mm) TQFN Package
  • ±15kV ESD Human Body Model (HBM)

Applications/Uses

  • KVM for Servers
  • Notebook Computers—MXM/Switchable Graphics
Part Number Protocol Functions Config. Channels Normal Position VSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
RON
(Ω)
Bandwidth
(MHz)
IL(OFF)
(nA)
tON
(ns)
tOFF
(ns)
CON
(pF)
COFF
(pF)
Budgetary
Price
min max max max min max See Notes
MAX4885AE  VGA Mux 2-to-1 1 Open/Closed 5 5.5 8 900 10 300 300 5.5 2.5 $1.53 @1k
See All Switches and Multiplexers (Mid and High Voltage) (312)
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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX4885AEEVKIT: Evaluation Kit for the MAX4885AE

Quality and Environmental Data

Product Reliability Reports: MAX4885AE.pdf 
Lead-Free Package Tin (Sn) Whisker Reports
 

Related Resources


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