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  2. D/A Converters (DAC)
  3. Digital Potentiometers (DigiPOT)
  4. AD5233

Data Sheet Rev. B
User Guides
CN 1 View All
Device Drivers
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Overview

Features and Benefits

  • Nonvolatile Memory Preset Maintains Wiper Settings
  • 4-channel independent programmable
  • 64-position resolution
  • EEMEM restore time: 140 μs typical
  • Full monotonic operation
  • 10 kΩ, 50 kΩ, and 100 kΩ terminal resistance
  • See Data Sheet for Additional Information

Product Details

The AD5233 is a quad-channel nonvolatile memory,1 digitally controlled potentiometer2 with a 64-step resolution. The device performs the same electronic adjustment function as a mechanical potentiometer with enhanced resolution, solid-state reliability, and remote controllability. The AD5233 has versatile programming using a serial peripheral interface (SPI) for 16 modes of operation and adjustment, including scratchpad programming, memory storing and restoring, increment/decrement, ±6 dB/step log taper adjustment, wiper setting readback, and extra EEMEM for user-defined information such as memory data for other components, look-up tables, or system identification information.

In the scratchpad programming mode, a specific setting can be programmed directly to the RDAC register, which sets the resistance between Terminal W to Terminal A and Terminal W to Terminal B. This setting can be stored into the EEMEM and is transferred automatically to the RDAC register during system power-on.

The EEMEM content can be restored dynamically or through external PR strobing. A WP function protects EEMEM contents. To simplify the programming, independent or simultaneous increment or decrement commands can be used to move the RDAC wiper up or down, one step at a time. For logarithmic ±6 dB step changes in wiper settings, the left or right bit shift command can be used to double or halve the RDAC wiper setting.

The AD5233 is available in a thin 24-lead TSSOP package. The part is guaranteed to operate over the extended industrial temperature range of −40°C to +85°C.

APPLICATIONS

  • Mechanical potentiometer replacement
  • Instrumentation: gain, offset adjustment
  • Programmable voltage-to-current conversion
  • Programmable filters, delays, time constants
  • Programmable power supply
  • Sensor calibration

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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 (1)

Documentation & Resources

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  • Data Sheets (1)
  • Application Notes (4)
  • User Guides (1)
  • Frequently Asked Questions (1)
  • Product Selection Guide (1)
  • Webcasts (2)
    • Document Type
    Frequently Asked Questions

    Software & Systems Requirements

    Device Drivers

    WIKI

    Digital Potentiometer Linux Driver

    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.View our quality and reliability program and certifications for more information.

    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    AD5233BRUZ10 Material Declaration Reliability Data 24-Lead TSSOP
    AD5233BRUZ10-R7 Material Declaration Reliability Data 24-Lead TSSOP
    AD5233BRUZ50 Material Declaration Reliability Data 24-Lead TSSOP
    AD5233BRUZ50-R7 Material Declaration Reliability Data 24-Lead TSSOP
    Wafer Fabrication Data

    PCN-PDN Information

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    Select Model for PCN Information
    • AD5233BRUZ10 Production
    • AD5233BRUZ10-R7 Production
    • AD5233BRUZ50 Production
    • AD5233BRUZ50-R7 Production

    Support & Discussions

    AD5233 Contact ADI Technical Support »
    AD5233 Ask your question »
    AD5233 Contact ADI Technical Support » AD5233 Ask your question »

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