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

±15kV ESD-Protected, Low-Voltage, Quad SPST Switches

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The MAX4620/MAX4630/MAX4640 low-voltage, high-ESD-protected, quad, single-pole/single-throw (SPST) analog switches are pin-compatible replacements for the industry-standard 74HC4066 analog switch. The normally open (NO) and normally closed (NC) pins are protected against ±15kV electrostatic discharge (ESD) without latchup or damage. Each switch can handle Rail-to-Rail analog signals. The off-leakage current is 0.5nA at +25°C. These analog switches are suitable for low-distortion audio applications and are the preferred solution over mechanical relays in automated test equipment or applications where current switching is required. They have low power requirements (0.5µW), require less board space, and are more reliable than mechanical relays. Each device is controlled by TTL/CMOS input voltage levels and is bilateral.

These switches feature guaranteed operation from a +2V to +12V single supply, making them ideal for use in battery-powered applications. The on-resistance is 70Ω max, matched between switches to 0.5Ω (typ), and flat (2Ω typ) over the specified signal range.

The MAX4620 has four NO switches, the MAX4630 has four NC switches, and the MAX4640 has two NO and two NC switches. These devices are available in 14-pin TSSOP, SO, and DIP packages.
MAX4620: Pin Configuration MAX4620: Pin Configuration Enlarge+

Key Features

  • ESD-Protected NO/NC Pins
    • ±15kV Human Body Model
    • ±15kV IEC 1000-4-2 Air-Gap Discharge
    • ±8kV IEC 1000-4-2 Contact Discharge
  • Pin Compatible with Industry-Standard 74HC4066, MAX4066, MAX4610/MAX4611/MAX4612
  • Guaranteed On-Resistance
    • 70Ω (max) at 5V
    • 120Ω (max) at 3V
  • On-Resistance Flatness
    • 2Ω (typ) at 5V
    • 6Ω (typ) at 3V
  • On-Resistance Matching
    • 0.5Ω (typ) at 5V
    • 0.6Ω (typ) at 3V
  • Guaranteed 0.5nA Leakage Current at TA = +25°C
  • +2V to +12V Single-Supply Voltage
  • TTL/CMOS-Logic Compatible
  • Low Distortion: 0.015%
  • -3dB Bandwidth: > 300MHz
  • Rail-to-Rail Signal Range


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

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

Part NumberFunctionsConfig.ChannelsNormal PositionVSUPPLY (Single)
VSUPPLY (Single)
minmaxmaxmaxmaxmaxSee Notes
MAX4620 SwitchSPST4Open212703000.51508052012
SOIC (N)/14
$1.83 @1k
MAX4630 Closed
SOIC (N)/14
$1.89 @1k
MAX4640 Open/Closed
SOIC (N)/14
$1.83 @1k

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: MAX4620 
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.

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