Quad Equalized 1.5/3.0/6.0GT/s SAS/SATA Redriver

Ultra-Small Equalizer/Redriver Supports SAS Data Rates Up to 6.0GT/s (Gigatransfers per Second)

Please check latest availability status for a specific part variant.


The MAX4952 quad-channel redriver is designed to redrive two full lanes of SAS or SATA signals up to 6.0GT/s (gigatransfers per second) and operates from a single +3.3V supply.

The MAX4952 features independent input equalization and output preemphasis. The MAX4952 enhances signal integrity at the receiver by equalizing the signal at the input and establishing preemphasis at the output of the device. SAS and SATA OOB (Out-of-Band) signaling is supported using high-speed amplitude detection on the inputs and squelch on the corresponding outputs. Inputs and outputs are all internally 50Ω terminated and must be AC-coupled to the SAS/SATA controller IC and SAS/SATA device.

The MAX4952 is available in a small 42-pin, 3.5mm x 9mm TQFN package with flowthrough traces for ease of layout. This device is specified over the 0°C to +70°C operating temperature range.
MAX4952: Typical Application Circuit MAX4952: Typical Application Circuit Enlarge+

Key Features

  • Single +3.3V Supply Operation
  • SAS Gen I/II Up to 6.0GT/s
  • Excellent Return Loss
    • 8dB at 3.0GT/s
  • Supports SAS/SATA OOB (Out-of-Band) Signaling Very Fast Entry and Exit Time
    • 5ns (typ)
  • Internal Input/Output 50Ω Termination Resistors
  • Selectable Input Equalization
    • 0, 3dB
  • Standard 1000mVP-P Selectable (typ) Output
  • Selectable Preemphasis
    • 0, 3dB
  • Inline Signal Traces for Flowthrough Layout
  • Space-Saving Package: 3.5mm x 9mm TQFN


  • Data Storage/Work Stations
  • Docking Stations
  • Servers
Part NumberFunctionsInterfaceData Rate
ChannelsPackage/PinsOper. Temp.
maxtypSee Notes
MAX4952 Equalizer/Re-Driver
0 to +70$17.76 @1k
See All Repeaters and Buffers (SAS, SATA, PCIe, USB) (13)
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

Request Reliability Report for: MAX4952 
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.

Quality Management System >
Environmental Management System >


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