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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

Product Details

Key Features

Parametric specs for Switches and Multiplexers (Mid and High Voltage)
Protocol VGA
Configuration 2-to-1
# Channels 1
Functions Mux
Normal Position Open/Closed
VSUPPLY (Single) (V) (min) 5
VSUPPLY (Single) (V) (max) 5.5
RON (Ω) (max) 8
Bandwidth (MHz) 900
Package/Pins TQFN/28
Budgetary
Price (See Notes)
2.01
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Simplified Block Diagram

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Parameters

Parametric specs for Switches and Multiplexers (Mid and High Voltage)
Protocol VGA
Configuration 2-to-1
# Channels 1
Functions Mux
Normal Position Open/Closed
VSUPPLY (Single) (V) (min) 5
VSUPPLY (Single) (V) (max) 5.5
RON (Ω) (max) 8
Bandwidth (MHz) 900
Package/Pins TQFN/28
Budgetary
Price (See Notes)
2.01

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

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.

Simplified Block Diagram

MAX4885AE: Typical Operating Circuit MAX4885AE: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.