High-Bandwidth, ±15kV ESD Protection LVDS Switch

High-Speed Passive Switches Provide LVDS Signal Routing for Switchable Graphics with Extra ESD Protection


The MAX14979E is optimized for high-speed differential switching applications. The device is ideal for low-voltage differential signal (LVDS) and low-voltage, positive emitter-coupled logic (LVPECL) switching applications. The MAX14979E provides enhanced electrostatic discharge (ESD) protection up to ±15kV and excellent high-frequency response, making this device especially useful for interfaces that must go to an outside connection.

The MAX14979E provides extremely low capacitance (CON) as well as low resistance (RON) for low-insertion loss and bandwidth up to 650MHz (1.3Gbps). In addition to the four pairs of double-pole/double-throw (DPDT) switches, the MAX14979E provides low-frequency (up to 50MHz) and AUX switching that can be used for LED lighting or other applications.

The MAX14979E is available in a space-saving, 36-pin TQFN package and operates over the extended -40°C to +85°C temperature range.
MAX14979E: Functional Diagram MAX14979E: Functional Diagram Enlarge+

Key Features

  • ±15kV ESD Protected per MIL-STD-883, Method 3015
  • Single +3.0V to +3.6V Power-Supply Voltage
  • Low On-Resistance (RON): 4Ω (typ), 6.5Ω (max)
  • Low On-Capacitance (CON): 8pF (typ)
  • -23dB Return Loss (100MHz)
  • -3dB Bandwidth: 650MHz
  • Built-In AUX Switches for Switching Indicators
  • Low 450µA (max) Quiescent Current
  • Bidirectional 8 to 16 Multiplexer/Demultiplexer
  • Space-Saving, Lead-Free, 36-Pin, 6mm x 6mm TQFN Package


  • LVDS and LVPECL Switching
  • Notebook Computers
  • Switch LVDS to Graphics Panels
Part Number Protocol Functions Config. Normal Position VSUPPLY (Single)
VSUPPLY (Single)
Package/Pins Budgetary
min max max min max See Notes
MAX14979E  LVDS Mux/DeMux DPDT Open 3 3.6 6.5 650 50 50 8 3.5
$2.13 @1k
See All Switches and Multiplexers (Mid and High 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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Quality and Environmental Data

Product Reliability Reports: MAX14979E.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

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