Features and Benefits

  • Designed for SuperSpeed USB Applications:
    • Low/Full/Hi-Speed (1.5/12/480Mbps)
    • SuperSpeed (5.0Gbps)
  • Superior Return Loss and Insertion Loss for SuperSpeed Analog Switches
  • Low Quiescent Current: 36µA (typ)
  • All Link Training is Preserved (SuperSpeed)
  • LVCMOS Control (1.4V ≤ VIH ≤ 3.6V)
  • Operation from a Single +3.3V Power Supply
  • Small, 3.5mm × 9.0mm, 42-Pin TQFN Package

Product Details

The MAX14978 high-performance, passive analog switch is ideal for switching Hi-Speed USB and SuperSpeed USB data between one source and two loads, or vice versa. The device can be used in desktop and notebook applications where SuperSpeed USB ports are in limited supply. The device consists of two sets of analog switches with one set used for USB low-speed, full-speed, and Hi-Speed signals and the second set used for USB SuperSpeed. The device operates from a single +3.3V supply.

The device features low insertion loss for all speeds. It has ±6kV Human Body Model (HBM) ESD protection on all I/O pins. In addition, the low/full/Hi-Speed COM_ ports have ESD protection to ±15kV HBM and ±8kV IEC 61000-4-2 contact.

The device is available in a small, 3.5mm × 9.0mm, 42-pin TQFN package and is specified over the extended -40°C to +85°C temperature range.


  • Desktop PCs
  • Industrial USB Switching
  • Laptop PCs

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

Sample & Buy

Ordering FAQs

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Buy Now Pricing

(**) Displayed Buy Now Price and Price Range is based on small quantity orders.


List Pricing

(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.



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