0.5Ω, Low-Voltage, Single-Supply SPST Analog Switches

Please check latest availability status for a specific part variant.


The MAX4626/MAX4627/MAX4628 are low-on-resistance, low-voltage, single-pole/single-throw (SPST) analog switches that operate from a +1.8V to +5.5V single supply. The MAX4626 is normally open (NO), and the MAX4627 is normally closed (NC). The MAX4628 is normally open (NO) and has two control inputs. These devices also have fast switching speeds (tON = 50ns max, tOFF = 30ns max).

When powered from a +5V supply, the MAX4626/ MAX4627/MAX4628 offer 0.5Ω max on-resistance (RON) with 0.1Ω max RON flatness, and their digital logic inputs are TTL compatible. These switches also feature overcurrent protection to prevent device damage from short circuits and excessive loads.

The MAX4626 is pin compatible with the MAX4514, and the MAX4627 is pin compatible with the MAX4515. The MAX4626/MAX4627 are available in SOT23-5 packages; the MAX4628 is available in a SOT23-6 package.
MAX4626, MAX4627, MAX4628: Pin Configurations/Functional Diagrams/Truth Tables MAX4626, MAX4627, MAX4628: Pin Configurations/Functional Diagrams/Truth Tables Enlarge+

Key Features

  • Low RON
    • 0.5Ω max (+5V Supply)
    • 0.9Ω max (+3V Supply)
  • 0.1Ω max RON Flatness (+5V Supply)
  • Overcurrent Protection
  • Single-Supply Operation (+1.8V to +5.5V)
  • Available in SOT23 Packages
  • Fast Switching: tON = 50ns max, tOFF = 30ns max
  • TTL-Logic Compatible at +5V
  • Pin Compatible with MAX4514 (MAX4626)
  • Pin Compatible with MAX4515 (MAX4627)


  • Audio/Video Signal Routing
  • Battery-Powered Applications
  • Cell Phones
  • Communication Systems
  • Hard Drives
  • Low-Voltage Data Acquisition
  • Modems
  • PCMCIA Cards
  • Power Routing

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 844 Low-Cost Anemometer Fights Dust
Product Reliability Reports: MAX4626.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

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 >


Related Resources

Type ID Title
App Note 844 Low-Cost Anemometer Fights Dust