Features and Benefits

  • AEC-Q100 Qualified for Automotive Applications
  • Integrated Precision Reference
    • 2.5V Full-Scale 10ppm/°C (LTC2634-L)
    • 4.096V Full-Scale 10ppm/°C (LTC2634-H)
  • Maximum INL Error: ±2.5 LSB (LTC2634-12)
  • Low Noise: 0.75mVP-P 0.1Hz to 200KHz
  • Guaranteed Monotonic over −40°C to 125°C Temperature Range
  • Selectable Internal or External Reference
  • 2.7V to 5.5V Supply Range (LTC2634-L)
  • Ultralow Crosstalk Between DACs (2.4nV•s)
  • Low Power: 0.6mA at 3V
  • Power-On Reset to Zero-Scale/Mid-Scale
  • Double Buffered Data Latches
  • Tiny 16-Lead 3mm × 3mm QFN and 10-Lead MSOP Packages
  • Product Details

    The LTC2634 is a family of quad 12-, 10- and 8-bit voltage output DACs with an integrated, high accuracy, low drift 10ppm/°C reference in 16-lead QFN and 10-lead MSOP packages. It has rail-to-rail output buffers and is guaranteed monotonic. The LTC2634-L has a full-scale output of 2.5V, and operates from a single 2.7V to 5.5V supply. The LTC2634-H has a full-scale output of 4.096V, and operates from a 4.5V to 5.5V supply. Each DAC can also operate with an external reference, which sets the full-scale output to the external reference voltage.

    These DACs communicate via an SPI/MICROWIRE compatible 3-wire serial interface which operates at clock rates up to 50MHz. Serial data output (SDO), a hardware clear (CLR), and an asynchronous DAC update (LDAC) capability are available in the QFN package. The LTC2634 incorporates a power-on reset circuit. Options are available for reset to zero-scale or reset to mid-scale in internal reference mode, or reset to mid-scale in external reference mode after power-up.


    • Mobile Communications
    • Process Control and Industrial Automation
    • Automatic Test Equipment
    • Portable Equipment
    • Automotive

    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.

    Evaluation Kits (4)

    Tools & Simulations


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    Linduino code repository on GitHub and instructions on how to use the code.

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    Product Recommendations

    LTC2634 Companion Parts

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    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.

    PCN-PDN Information

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    Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.