AD5206

6-Channel, 256-Position Digital Potentiometer
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Product Details

The AD5204/AD5206 provide 4-/6-channel, 256-position digitally controlled variable resistor (VR) devices. These devices perform the same electronic adjustment function as a potentiometer or variable resistor. Each channel of the AD5204/ AD5206 contains a fixed resistor with a wiper contact that taps the fixed resistor value at a point determined by a digital code loaded into the SPI-compatible serial-input register. The resistance between the wiper and either endpoint of the fixed resistor varies linearly with respect to the digital code transferred into the VR latch. The variable resistor offers a completely programmable value of resistance between the A terminal and the wiper or the B terminal and the wiper. The fixed A-to-B terminal resistance of 10 kΩ, 50 kΩ, or 100 kΩ has a nominal temperature coefficient of 700 ppm/°C.

Each VR has its own VR latch that holds its programmed resistance value. These VR latches are updated from an internal serial-to-parallel shift register that is loaded from a standard 3-wire serial-input digital interface. Eleven data bits make up the data-word clocked into the serial input register. The first three bits are decoded to determine which VR latch is loaded with the last eight bits of the data-word when the CS strobe is returned to logic high. A serial data output pin at the opposite end of the serial register (AD5204 only) allows simple daisy chaining in multiple VR applications without requiring additional external decoding logic.

An optional reset (PR) pin forces all the AD5204 wipers to the midscale position by loading 0x80 into the VR latch.

The AD5204/AD5206 are available in the 24-lead surface-mount SOIC, TSSOP, and PDIP packages. The AD5204 is also available in a 32-lead, 5 mm × 5 mm LFCSP package. All parts are guaranteed to operate over the extended industrial temperature range of −40°C to +85°C. For additional single-, dual-, and quad-channel devices, see the AD8400/AD8402/AD8403 data sheets.

Applications

  • Mechanical potentiometer replacement
  • Instrumentation: gain, offset adjustment
  • Programmable voltage-to-current conversion
  • Programmable filters, delays, time constants
  • Line impedance matching
  • Data Sheet, Rev. B, 5/09

    Product Lifecycle

    checked 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.

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    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.

    AD5206 Material Declaration
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    Overview

    9 Reviews
    9 out of 9 (100%) customers recommend this product.
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    Most Helpful Review

    by Anonymous
    perhaps put it in a smaller package and add more digital pots?

    Most Recent Review

    by Nick
    The product's documentation is excellent, allowing me to easily configure the product to work for me. The quality of the documentation can mean the difference from trying out the product to putting it on the shelf, regardless of how good the product might be. I also like that fact that there are multiple outputs.

    All Reviews

    by Nick, 11 Mar 14
    Great product
    The product's documentation is excellent, allowing me to easily configure the product to work for me. The quality of the documentation can mean the difference from trying out the product to putting it on the shelf, regardless of how good the product might be. I also like that fact that there are multiple outputs.
    Was this Helpful?Helpful(0)
    by Diamantes86, 4 Mar 14
    poorly documented
    Although the results were satisfactory, the product documentation is poor, or that cause delays in the project.
    Was this Helpful?Helpful(0)
    by OlMogy, 10 Dec 13
    DS5206
    A very nice chip! I did see another reviewer mention that 1024 taps would make this chip perfect, and I have to agree.
    Was this Helpful?Helpful(0)
    by Tronicgr, 12 Nov 13
    Excellent product!
    The only thing I wish is of it had more that 256 positions resolution. 1024 would be perfect!!
    Was this Helpful?Helpful(0)
    by Tman81, 12 Nov 13
    M.E. mechanical engineering research project
    AD5206 Used with Arduino Uno for wheelchair control research project.
    Was this Helpful?Helpful(0)
    by BinaryG, 5 Aug 13
    AD5206 Great Digital Pots
    I found the AD5206 to be a very easy part to work with and 6 pots on chip makes sure i will be using it in a wide range of products.
    Was this Helpful?Helpful(0)
    by gf, 9 Jul 13
    works well, but not what I needed
    I used this during protoyping and it worked according to the specs. I was pleased with it. However, I realized that this was not suitable for my circuit and abandoned the idea of using it. I have been working on a new design as a result. I was happy the Analog Devices allowed me to have a sample for the prototyping
    Was this Helpful?Helpful(0)
    by Anonymous, 9 Jun 13
    Analog Support
    Easy to order, product worked brilliantly, excellent support from Analog
    Was this Helpful?Helpful(0)
    by Anonymous, 24 Sep 12
    The product was good.
    perhaps put it in a smaller package and add more digital pots?
    Was this Helpful?Helpful(0)

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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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