Features and Benefits

  • 3-Wire Serial Digital Interface
  • Data Retransmission Allows Series Connection with Serial A/D Converters
  • Single 3V to ±5V Supply Operation
  • Analog Inputs May Extend to Supply Rails
  • Low Charge Injection
  • Low RON: 75Ω Max
  • Low Leakage: ±5nA Max
  • Guaranteed Break-Before-Make
  • TTL/CMOS Compatible for All Digital Inputs
  • Cascadable to Allow Additional Channels
  • Can be used as a Demultiplexer

Product Details

The LTC1390 is a high performance CMOS 8-to-1 analog multiplexer. It features a 3-wire digital interface with a bidirectional data retransmission feature, allowing it to be wired in series with a serial A/D converter while using only one serial port. The interface also allows several LTC1390s to be wired in series or parallel, increasing the number of MUX channels available using only a single digital port. All the above features are also valid when LTC1390 operates as a demultiplexer such as with a D/A converter.

The LTC1390 features a typical RON of 45Ω, typical switch leakage of 50pA, and guaranteed break-before-make operation. Charge injection is ±10pC maximum. All digital inputs are TTL and CMOS compatible when operated from single or dual supplies. The inputs can withstand 100mA fault currents.

The LTC1390 is available in 16-pin PDIP and narrow SO packages.


  • Data Acquisition Systems
  • Communication Systems
  • Signal Multiplexing/Demultiplexing

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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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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