2.7Gbps Dual Mux/Buffer with Loopback

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The MAX3783 is a dual serial multiplexer (mux) and buffer with selectable line-side loopback for system interconnect and serial backplane applications up to 2.7Gbps. Each independent channel consists of a transmitter with fanout of two and a receiver with a 2:1 input mux. Selectable loopback paths support system testing.

Operating from a single 3.3V supply, this device has current-mode logic (CML) inputs and outputs, which can be AC-coupled for PECL compatibility, if desired. The IC is packaged in a compact 48-pin TQFP-EP package with exposed pad. Typical power consumption is 1.12W.
MAX3783: Typical Operating Circuit MAX3783: Typical Operating Circuit Enlarge+

Key Features

  • Provides Redundant Serial I/O
  • 11ps Deterministic Jitter
  • Selectable Loopback
  • On-Chip 50Ω Termination Resistors
  • 3.3V Power Supply
  • Two-Port Integration


  • 2.7Gbps Serial Communications
  • Fail-Over and Protection Switching
  • Serial Backplane
  • System Interconnects
Part NumberSignal TypeSignal TypeFunctionsRxTxData Rates
Propagation Delay
RxTxmaxSee Notes
$9.34 @1k
See All High-Speed Interconnect (Differential Signaling) (125)
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.

Technical Documents

App Note 862 HFAN-08.1: Thermal Considerations of QFN and Other Exposed-Paddle Packages

Quality and Environmental Data

Request Reliability Report for: MAX3783 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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