Features and Benefits

  • 16-Bit Monotonic Over Temperature
  • Deglitched Rail-to-Rail Voltage Output: 8nV•s
  • ICC: 650µA Typ
  • Maximum DNL Error: ±1LSB
  • Settling Time: 20µs to ±1LSB
  • Built-In Reference:
    • 2.048V (LTC1657)
    • 1.25V (LTC1657L)
  • Internal Power-On Reset to Zero Volts
  • Asynchronous CLR Pin
  • Output Buffer Configurable for Gain of 1 or 2
  • Parallel 16-Bit or 2-Byte Double Buffered Interface
  • Narrow 28-Lead SSOP Package
  • Multiplying Capability

Product Details

The LTC1657/LTC1657L are complete single supply, rail-to-rail voltage output, 16-bit analog-to-digital converters (DAC) in a 28-pin SSOP or PDIP package. They include a rail-to-rail output buffer amplifier, an internal reference and a double buffered parallel digital interface.

The LTC1657/LTC1657L have separate reference input pins that can be driven by an external reference. The fullscale output can be 1 or 2 times the reference voltage depending on how the X1/X2 pin is connected. The LTC1657 operates from a 4.5V to 5.5V supply and has an on-board 2.048V reference. The LTC1657L operates from a 2.7V to 5.5V supply and has an on-board 1.25V reference.

The LTC1657/LTC1657L are similar to the LTC1450/LTC1450L 12-bit VOUT DAC family, allowing an upgrade path. They are the only buffered 16-bit parallel DACs in a 28-lead SSOP package and include an onboard reference for stand alone performance.


  • Instrumentation
  • Digital Calibration
  • Industrial Process Control
  • Automatic Test Equipment
  • Communication Test Equipment

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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