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ADG1439:  ±15 V/+12 V/±5 V, Dual 4 to 1 Multiplexer, Serially Controlled Matrix Switch

Product Details

The ADG1438 and ADG1439 are CMOS analog matrix switches with a serially controlled 3-wire interface. The ADG1438 is an 8-channel matrix switch, and the ADG1439 is a dual 4-channel matrix switch.

The ADG1438/ADG1439 use a versatile 3-wire serial interface that operates at clock rates of up to 50 MHz and is compatible with standard SPI, QSPI™, MICROWIRE™, and DSP interface standards. The output of the shift register, SDO, enables a number of the ADG1438/ADG1439 parts to be daisy-chained. On power-up, the internal shift register contains all zeros, and all switches are in the off state.

Each switch conducts equally well in both directions when on, making these parts suitable for both multiplexing and demulti-plexing applications. Because each switch is turned on or off by a separate bit, these parts can also be configured as a type of switch array, where any, all, or none of the eight switches can be closed at any time. The input signal range extends to the supply rails. All channels exhibit break-before-make switching action, preventing momentary shorting when switching channels.

The ultralow on resistance and on-resistance flatness of these switches make them ideal solutions for data acquisition and gain switching applications where low distortion is critical. iCMOS® construction ensures ultralow power dissipation, making the parts ideally suited for portable and battery-powered instruments.

  1. 50 MHz serial interface.
  2. 9.5 Ω on resistance.
  3. 1.6 Ω on resistance flatness.
  4. 3 V logic-compatible digital input, VINH = 2.0 V, VINL = 0.8 V.
  • Relay replacement
  • Audio and video routing
  • Automatic test equipment
  • Data acquisition systems
  • Temperature measurement systems
  • Avionics
  • Battery-powered systems
  • Communication systems
  • Medical equipment


  • Serial interface; up to 50 MHz
  • SDO daisy-chaining option
  • 9.5 Ω on resistance @ 25°C
  • 1.6 Ω on resistance flatness
  • Fully specified at ±15 V/+12 V/
    ±5 V
  • 3 V logic-compatible inputs
  • Rail-to-rail operation
  • 20-lead TSSOP and 20-lead
    4 mm × 4 mm LFCSP packages

Functional Block Diagram for ADG1439

Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

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Price, packaging, availability

ADG1439 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
ADG1439BCPZ-REEL7 Status: Production 20 ld LFCSP 4x4mm (2.5EP 20 Ind Reel, 1500 - $2.96 Y  Material Info PCN Purchase Sample
ADG1439BRUZ Status: Production 20 ld TSSOP 20 Ind Tube, 75 $3.61 $2.96 Y  Material Info Notify Me Purchase Sample
ADG1439BRUZ-REEL7 Status: Production 20 ld TSSOP 20 Ind Reel, 1000 - $2.96 Y  Material Info Notify Me Purchase
Price Table Help

The USA 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. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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