Maxim > Products > Analog Switches and Multiplexers > MAX4680, MAX4690, MAX4700

MAX4680, MAX4690, MAX4700

1.25Ω, Dual, SPST, CMOS Analog Switch

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Active: In Production.


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.

Data Sheet

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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

Key Specifications:

Switches and Multiplexers (Mid and High Voltage)
Part Number Functions Config. Channels Normal Position VSUPPLY (Single)
VSUPPLY (Single)
min max min max max max min max See Notes
MAX4680  Switch SPST 2 Closed 4.5 36 4.5 20 1.25 0.5 275 175 550 520 115 $4.99 @1k
MAX4690  Open $4.43 @1k
MAX4700  Open/Closed $6.17 @1k
See All Switches and Multiplexers (Mid and High Voltage) (312)

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.


MAX4680, MAX4690, MAX4700: Pin Configuration
Pin Configuration

Notes and Comments

High-voltage, 1.25Ω, 0.3Ω matching and flattness

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Document Ref.: 19-1513 Rev 0; 1999-07-01
This page last modified: 2009-11-05