Overview

Features and Benefits

  • 2µs Settling to 0.0015% for 10V Step
  • 1LSB Max DNL and INL Over Industrial Temperature Range
  • On-Chip 4-Quadrant Resistors Allow Precise 0V to 10V, 0V to –10V or ±10V Outputs
  • Low Glitch Impulse: 2nV•s
  • 36-Lead SSOP Package
  • Power-On Reset
  • Asynchronous Clear Pin
    • LTC1821: Reset to Zero Scale
    • LTC1821-1: Reset to Midscale
  • Low Noise: 13nV/√Hz

Product Details

The LTC1821 is a parallel input 16-bit multiplying voltage output DAC that operates from analog supply voltages of ±5V up to ±15V. INL and DNL are accurate to 1LSB over the industrial temperature range in both unipolar 0V to 10V and bipolar ±10V modes. Precise 16-bit bipolar ±10V outputs are achieved with on-chip 4-quadrant multiplication resistors. The LTC1821 is available in a 36-lead SSOP package and is specified over the industrial temperature range.

The device includes an internal deglitcher circuit that reduces the glitch impulse to less than 2nV•s (typ). The LTC1821 settles to 1LBS in 2µs with a full-scale 10V step. The combination of fast, precise settling and ultra low glitch make the LTC1821 ideal for precision industrial control applications.

The asynchronous CLR pin resets the LTC1821 to zero scale and resets the LTC1821-1 to midscale.

Applications

  • Precision Instrumentation
  • Process Control and Industrial Automation
  • Direct Digital Waveform Generation
  • Software-Controlled Gain Adjustment
  • Automatic 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.

PCN-PDN Information

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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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