±15kV ESD-Protected, Low-Voltage, SPDT/SPST, CMOS Analog Switches

Please check latest availability status for a specific part variant.


The MAX4561/MAX4568/MAX4569 are low-voltage, ESD-protected analog switches. The normally open (NO) and normally closed (NC) inputs are protected against ±15kV electrostatic discharge (ESD) without latchup or damage, and the COM input is protected against 2.5kV ESD.

These switches operate from a single +1.8V to +12V supply. The 70Ω at 5V (120Ω at 3V) on-resistance is matched between channels to 2Ω max, and is flat (4Ω max) over the specified signal range. The switches can handle rail-to-rail analog signals. Off-leakage current is only 0.5nA at +25°C and 5nA at +85°C. The digital input has +0.8V to +2.4V logic thresholds, ensuring TTL/CMOS-logic compatibility when using a single +5V supply. The MAX4561 is a single-pole/double-throw (SPDT) switch. The MAX4568 NO and MAX4569 NC are single-pole/single-throw (SPST) switches.

The MAX4561 is available in a 6-pin SOT23 package, and the MAX4568/MAX4569 are available in 5-pin SOT23 packages.
MAX4561, MAX4568, MAX4569: Pin Configuration MAX4561, MAX4568, MAX4569: Pin Configuration Enlarge+

Key Features

  • ESD-Protected NO, NC
    • ±15kV—Human Body Model
    • ±15kV—IEC 1000-4-2, Air-Gap Discharge
    • ±8kV—IEC 1000-4-2, Contact Discharge
  • Guaranteed On-Resistance
    • 70Ω +5V Supply
    • 120Ω with Single +3V Supply
  • On-Resistance Match Between Channels (2Ω max)
  • Low On-Resistance Flatness: 4Ω max
  • Guaranteed Low Leakage Currents
    • 0.5nA Off-Leakage (at TA = +25°C)
    • 0.5nA On-Leakage (at TA = +25°C)
  • Guaranteed Break-Before-Make at 5ns (MAX4561 only)
  • Rail-to-Rail Signal Handling Capability
  • TTL/CMOS-Logic Compatible with +5V Supplies
  • Industry Standard Pin-Outs
    • MAX4561 Pin Compatible with MAX4544
    • MAX4568/MAX4569 Pin Compatible with MAX4514/MAX4515


  • Protection Circuits
  • Switches and Multiplexers

See parametric specs for Switches and Multiplexers (Mid and High Voltage) (299)

Part NumberFunctionsConfig.ChannelsNormal PositionVSUPPLY (Single)
VSUPPLY (Single)
minmaxmaxmaxmaxmaxSee Notes
MAX4561 SwitchSPDT1-212700.515080173112
$1.44 @1k
MAX4568 SPSTOpen620
MAX4569 SPSTClosed620

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.
Request Reliability Report for: MAX4568 
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