Features and Benefits

  • +1.8V to +5.5V Single-Supply Operation
  • Rail-to-Rail Analog-Signal Range
  • Guaranteed RON
    • 4Ω max (+5V Supply)
    • 8Ω max (+3V Supply)
  • +1.8V Operation
    • RON 30Ω (typ) Over Temperature
    • tON 18ns (typ), tOFF 12ns typ
  • Guaranteed RON Flatness: 0.75Ω (typ) (+5V Supply)
  • Guaranteed RON Match Between Channels: 0.1Ω typ (+5V Supply)
  • Low Leakage (< 0.35nA) Over Entire Temperature Range
  • Excellent AC Characteristics
    • Low Crosstalk: -82dB at 1MHz
    • High Off-Isolation: -80dB at 1MHz
    • 0.018% Total Harmonic Distortion
  • Low Power Consumption: < 0.01µW

Product Details

The MAX4644 is a single-pole/double-throw (SPDT) switch that operates from a single supply ranging from +1.8V to +5.5V. It provides low 4Ω on-resistance (RON) as well as 1Ω RON flatness over the entire analog-signal range. The MAX4644 offers fast switching times of less than 20ns while ensuring break-before-make operation. It typically consumes only 0.01µW of quiescent power, making it suitable for use in low-power, portable applications.

The MAX4644's features include low leakage currents over the entire temperature range, TTL/CMOS-compatible digital logic, and excellent AC characteristics. It is packaged in either a small 8-pin µMAX® or a tiny 6-pin SOT23.


  • Audio/Video Signal Routing
  • Battery-Powered Applications
  • Communication Systems
  • Low-Voltage Data Acquisition
  • Sample-and-Hold Circuits

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.

Product Recommendations

MAX4644 Companion Parts

Recommended Related Parts

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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Buy Now Pricing

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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.


Lead Times

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