1.25Ω, Dual, SPST, CMOS Analog Switch

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The MAX4680/MAX4690/MAX4700 dual analog switches feature low on-resistance of 1.25Ω max. On-resistance is matched between switches to 0.3Ω max and is flat (0.3Ω max) over the specified signal range. Each switch can handle Rail-to-Rail analog signals. Off-leakage current is only 5nA max at +85°C. These analog switches are ideal in low-distortion applications and are the preferred solution over mechanical relays in automatic test equipment or applications where current switching is required. They have low power requirements, require less board space, and are more reliable than mechanical relays.

The MAX4680 has two NC (normally closed) switches, and the MAX4690 has two NO (normally open) switches. The MAX4700 has one NC and one NO switch and features guaranteed break-before-make switching.

These devices operate from a +4.5V to +36V single supply or from ±4.5V to ±20V dual supplies. A separate logic supply pin guarantees TTL/CMOS-logic compatibility while operating across the entire supply voltage range.
MAX4680, MAX4690, MAX4700: Pin Configuration MAX4680, MAX4690, MAX4700: Pin Configuration Enlarge+

Key Features

  • Low On-Resistance (1.25Ω max)
  • Guaranteed RON Match Between Channels (0.3Ω max)
  • Guaranteed RON Flatness Over Specified Signal Range (0.3Ω max)
  • Rail-to-Rail Signal Handling
  • Guaranteed Break-Before-Make (MAX4700)
  • +4.5V to +36V Single-Supply Operation
  • ±4.5V to ±20V Dual-Supply Operation
  • TTL/CMOS-Compatible Control Inputs
  • > 2kV ESD Protection per Method 3015.7


  • Communication Systems
  • Data Acquisition
  • PBX/PABX Systems
  • Reed Relay Replacement
  • Sample-and-Hold Circuits
  • Test Equipment

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.
Product Reliability Reports: MAX4690.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.

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