Features and Benefits

  • Low RON:
    • 0.8Ω max (+3V Supply)
    • 2.5Ω max (+1.8V Supply)
  • 0.18Ω max RON Flatness (+3V Supply)
  • +1.6V to +3.6V Single-Supply Operation
  • Available in SOT23 and µMAX Packages
  • High-Current Handling Capacity (150mA continuous)
  • 1.8V CMOS Logic Compatible (+3V Supply)
  • Fast Switching: tON = 24ns, tOFF = 16ns

Product Details

The MAX4741/MAX4742/MAX4743 are low on-resistance, low-voltage, dual single-pole/single-throw (SPST) analog switches that operate from a single +1.6V to +3.6V supply. These devices have fast switching speeds (tON = 24ns, tOFF = 16ns max), handle rail-to-rail analog signals, and consume less than 1µW of quiescent power. The MAX4743 has break-before-make switching.

When powered from a +3V supply, the MAX4741/MAX4742/MAX4743 feature low 0.8Ω (max) on-resistance (RON), with 0.08Ω (max) RON matching and 0.18Ω RON flatness. The digital logic input is 1.8V CMOS compatible when using a single +3V supply.

The MAX4741 has two normally open (NO) switches, the MAX4742 has two normally closed (NC) switches, and the MAX4743 has one NO switch and one NC switch. The MAX4741 is available in 8-pin µDFN (2mm x 2mm), 8-pin SOT23, and 8-pin µMAX® packages. The MAX4742/MAX4743 are available in 8-pin SOT23 and 8-pin µMAX packages.


  • Audio and Video Signal Routing
  • Battery Powered Systems
  • Cellular Phones
  • Communications Circuits
  • Hard Drives
  • Low-Voltage Data-Acquisition Systems
  • Modems
  • PCMCIA Cards
  • Power Routing

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.

PCN-PDN Information

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