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AD5259:  Nonvolatile, I2C Compatible 256-Position, Digital Potentiometer

Product Details


The AD5259 provides a compact, nonvolatile LFCSP-10 (3 mm x 3 mm) or MSOP-10 (3 mm x 4.9 mm) packaged solution for 256-position adjustment applications. These devices perform the same electronic adjustment function as mechanical potentiometers1 or variable resistors, but with enhanced resolution and solid-state reliability.

The wiper settings are controllable through an I2C-compatible digital interface that is also used to read back the wiper register and EEPROM content. Resistor tolerance is also stored within EEPROM, providing an end-to-end tolerance accuracy of 0.1%.

A separate VLOGIC pin delivers increased interface flexibility. For users who need multiple parts on one bus, Address Bit AD0 and Address Bit AD1 allow up to four devices on the same bus

Applications

  • LCD panel VCOM adjustment
  • LCD panel brightness and contrast control
  • Mechanical potentiometer replacement in new designs
  • Programmable power supplies
  • RF amplifier biasing
  • Automotive electronics adjustment
  • Gain control and offset adjustment
  • Fiber to the home systems
  • Electronics level settings
  • FEATURES and BENEFITS

    • # Channels: 1
    • # Positions: 256
    • Memory Type: nonvolatile
    • Interface: I2C
    • Resistor Values (kOhm): 5, 10, 50, 100
    • Voltage Range (V): +5.5 V
    • Supply Current (µA): 3 µA
    • Temp. Range -40°C to +85°C
    • Absolute Tempco (ppm/°C): 300
    • VLOGIC Pin Provides Increased Interface flexibility

    Functional Block Diagram for AD5259

    Similar Products

    • AD5110: Single Channel, 128-Position, I2C, ±8% Resistor Tolerance, Nonvolatile Digital Potentiometer
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    • AD5112: Single Channel, 64-Position, I2C, ±8% Resistor Tolerance, Nonvolatile Digital Potentiometer
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    Documentation

    Title Content Type File Type
    AD5259: Nonvolatile, I2C Compatible 256-Position, Digital Potentiometer Data Sheet (Rev C, 10/2012) (pdf, 698 kB) Data Sheets PDF
    AN-1291: Digital Potentiometers: Frequently Asked Questions  (pdf, 805 kB) Application Notes PDF
    Choosing the Correct digiPOT for Your Application  (pdf, 431 kB) Design Handbooks PDF
    Webinar: Digital Potentiometers - Where and How to Use
    Digital Potentiometers (digiPOTs) provide a convenient way to adjust the ac or dc voltage or current output of sensors, power supplies, or other devices that require some type of calibration. This webcast will describe the function, use and advantages of using digital potentiometers in various applications. The webinar will also highlight the main parameters to be considered when designing a circuit using a digital potentiometer.
    Webcasts WEBCAST
    Understanding and Applying Digital Potentiometers
    In this webcast our experts will explain the differences between Pots and DigiPots and DACs, and present considerations for successful designs for many applications.
    Webcasts WEBCAST
    UG-392: Evaluation Board for the AD5259 Digital Potentiometer  (pdf, 680 kB) User Guides PDF
    Designing DACs into Precision Industrial 10-V Applications
    by Brendan Cronin, Analog Devices, Inc. (PlanetAnalog, 3/23/2006)
    Technical Articles HTML
    Simple VCOM Adjustment Uses Any Logic-supply Voltage
    by Peter Khairolomour and Alan Li, Analog Devices (EDN Design Idea, 9/30/04)
    Technical Articles HTML
    Choosing the Correct digiPOT for Your Application  (pdf, 431 kB) Overview PDF
    RAQs index Rarely Asked Questions HTML
    Is there a power up sequence I should follow? FAQs/RAQs HTML
    For dual supply digital potentiometers, if VDD/VSS are +2.5V/-2.5V respectively, can digital inputs be fed from a standard 3.3V CMOS logic component without logic level translation? What are the logic level thresholds when VDD is +2.5V and VSS is -2.5V? FAQs/RAQs HTML
    Is there a dependency between the logic level and power consumption? FAQs/RAQs HTML
    Is digital potentiometer a real replacement for mechanical potentiometer or are there restrictions regarding voltage potentials? FAQs/RAQs HTML
    Are all digital potentiometers limited to |5V|? FAQs/RAQs HTML
    Do digital potentiometers handle bipolar and AC operations? FAQs/RAQs HTML
    Can I achieve a 15V signal swing when using a 5V digital potentiometer? FAQs/RAQs HTML
    For digital potentiometers that do not have nonvolatile memory, what is the state during power up? FAQs/RAQs HTML
    Is there a particularly low-power digital potentiometer? FAQs/RAQs HTML
    Does the memory allow the device to return to the last stored value without an update from a micro? FAQs/RAQs HTML
    Will the data in the EEMEM need to be refreshed after 15 yrs when it is operated at 55°C? FAQs/RAQs HTML
    How many write cycles can the EEMEM go through before it fails? FAQs/RAQs HTML
    After the specified EEMEM data retention timeout period, can the power be turned off and back on so that the part is considered "refreshed"? FAQs/RAQs HTML
    Why are some digital potentiometers' maximum operating temperature only 85°C instead of the standard 125°C? FAQs/RAQs HTML
    How good is the resistance matching between Ch1 and Ch2 in the dual digital potentiometer? FAQs/RAQs HTML
    How is the resistance matching device to device? FAQs/RAQs HTML
    What is the resistance tolerance of the digital potentiometers? FAQs/RAQs HTML
    Can I cascade, serialize, or parallel multiple digital potentiometers to get the resistance or resolution I need? My requirement is for a 250 Ω digital potentiometer with approximately 1 Ω/step. I plan to use four 1 kΩ AD8403 in parallel with each set to nominally the same value. FAQs/RAQs HTML
    I would like to know how the digital potentiometer is built. How ideal are the wiper switches? FAQs/RAQs HTML
    What is the tempco of the digital potentiometer? FAQs/RAQs HTML
    What is the maximum current I can force into the digital potentiometer? FAQs/RAQs HTML
    Can a digitally controlled variable resistor withstand greater than 20mA? FAQs/RAQs HTML
    Can a digipot be used to construct a programmable high current source? FAQs/RAQs HTML
    If I use the digital potentiometer in a "dry" circuit (current through wiper < 1 pA), will it behave as a linear resistor in rheostat mode? FAQs/RAQs HTML
    Are ADI's digital potentiometers suitable for use in photodetector amplifiers and will they suffer from leakage currents which could affect the gain of the circuit? FAQs/RAQs HTML
    Regarding the spec on R-DNL, I am only concerned with relative adjustments. I'm not concerned with the actual value of the resistor in the digipot but need the digipot to be monotonic. FAQs/RAQs HTML
    Can I adjust the digital potentiometer for frequencies around 1MHz to 10MHz for adjusting the gain of a video signal? FAQs/RAQs HTML
    What is the maximum frequency that can be applied to the digital potentiometer CLK input? FAQs/RAQs HTML
    Is there crosstalk between Ch1 and Ch2 of a dual digital potentiometer such that a sine wave applied to Ch1 will occur in Ch2 as well? FAQs/RAQs HTML
    If I program Ch 1 from zero to full scale, will I expect Ch 2 to be disturbed? FAQs/RAQs HTML
    Digital Feedthrough FAQs/RAQs HTML
    How is the THD performance of digital potentiometer? FAQs/RAQs HTML
    If I use the digital potentiometer in audio volume control, will I experience zipper noise? FAQs/RAQs HTML
    For a digital potentiometer that requires 6-bit word length, what happens if I have 8-bit word length from my PC? FAQs/RAQs HTML
    For a digital potentiometer that requires 12-bit word length, how can I control with only 8-bit word length from my micro? FAQs/RAQs HTML
    Do you provide any software to control the digital potentiometers? FAQs/RAQs HTML
    How do I daisy-chain multiple potentiometers? How does the serial interface work for multiple AD8403's when there are still only two address bits? Are there multiple /CS lines, one for each individual chip? FAQs/RAQs HTML
    Can I program two channels of a multi-channel digital potentiometer at the same time? FAQs/RAQs HTML
    Can I read back the wiper setting of the digital potentiometers? FAQs/RAQs HTML
    Can I read back the contents of the two RDAC registers of AD5242 or AD5282 (dual I2C compatible digital potentiometer)? FAQs/RAQs HTML
    Is there a digital potentiometer controlled by a parallel input? FAQs/RAQs HTML
    Can digital potentiometers do log taper adjustment? FAQs/RAQs HTML
    I'm unsure about how to use pin 13 write protect (/WP), pin 14 preset (/PR), and pin 16 ready (RDY)? FAQs/RAQs HTML
    Why Should I replace mechanical potentiometers with digiPOT? FAQs/RAQs HTML
    What should I watch out for when I replace mechanical potentiometers with digital potentiometers? FAQs/RAQs HTML
    What is the ESD rating of digital potentiometers? FAQs/RAQs HTML
    How do I tell the end-to-end RAB resistance value? FAQs/RAQs HTML
    What are the common failure modes of digital potentiometers? FAQs/RAQs HTML
    Are there any evaluation boards for the digital potentiometers? FAQs/RAQs HTML
    Are PB-free digital potentiometers available? FAQs/RAQs HTML
    Can I use the new PB-free DigiPOTs in my traditional solder based PCB assembly process? FAQs/RAQs HTML
    Programmable 5-30V Power Supply FAQs/RAQs HTML
    Programmable LDO with Precision FAQs/RAQs HTML
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    Adjustable Voltage Source for Driving LED FAQs/RAQs HTML
    Adjustable Current Source for Driving Single LED FAQs/RAQs HTML
    Adjustable Current Source for Driving Multiple LEDs FAQs/RAQs HTML
    Programmable Bidirectional Current Source FAQs/RAQs HTML
    High Power RGB LEDs Driver FAQs/RAQs HTML
    Automatic LED Brightness Control FAQs/RAQs HTML
    High Voltage DAC FAQs/RAQs HTML
    Bipolar DAC with EEPROM FAQs/RAQs HTML
    Voltage-to-Current Conversion FAQs/RAQs HTML
    Programmable Low Pass Filter FAQs/RAQs HTML
    Programmable State-Variable Filter FAQs/RAQs HTML
    Programmable Oscillator FAQs/RAQs HTML
    Audio Volume Control FAQs/RAQs HTML
    Audio Amplifier Volume Control FAQs/RAQs HTML
    LCD Panel VCOM Adjustment FAQs/RAQs HTML
    Laser Bias and Modulation Current Biasing FAQs/RAQs HTML
    Manual Rotary Control FAQs/RAQs HTML
    Bipolar Programmable Gain Amplifier FAQs/RAQs HTML
    Programmable Current-Sensing Amplifier FAQs/RAQs HTML
    6-Bit Controller FAQs/RAQs HTML
    Level Shifting Digital Inputs from 3.3V to 5V or Vice Versa FAQs/RAQs HTML
    Level Shifting Digital Signals from 0V to +5V to -5V to 0V FAQs/RAQs HTML
    Multiple I2C Slave Devices Addressing FAQs/RAQs HTML
    Resolution Enhancement FAQs/RAQs HTML
    Pseudo Memory Retention FAQs/RAQs HTML
    Glossary of EE Terms Glossary HTML

    Design Tools,Models,Drivers & Software

    Title Content Type File Type
    Digital Potentiometer Linux Driver Device Drivers HTML

    Evaluation Kits & Symbols & Footprints

    Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

    Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

    SampleSample & Buy

    Price, packaging, availability

    AD5259 Model Options
    Model Package Pins Temp.
    Range
    Packing,
    Qty
    Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    AD5259BCPZ10-R7 Status: Production 10 ld LFCSP (3x3mm) 10 Ind Reel, 1500 - $0.90 Y  Material Info PCN Purchase Sample
    AD5259BCPZ100-R7 Status: Production 10 ld LFCSP (3x3mm) 10 Ind Reel, 1500 - $0.90 Y  Material Info PCN Purchase
    AD5259BCPZ5-R7 Status: Production 10 ld LFCSP (3x3mm) 10 Ind Reel, 1500 - $0.90 Y  Material Info PCN Purchase
    AD5259BCPZ50-R7 Status: Production 10 ld LFCSP (3x3mm) 10 Ind Reel, 1500 - $0.90 Y  Material Info PCN Purchase
    AD5259BRMZ10 Status: Production 10 ld MSOP 10 Ind Tube, 50 $1.00 $0.90 Y  Material Info PCN Purchase Sample
    AD5259BRMZ10-R7 Status: Production 10 ld MSOP 10 Ind Reel, 1000 - $0.90 Y  Material Info PCN Purchase
    AD5259BRMZ100 Status: Production 10 ld MSOP 10 Ind Tube, 50 $1.00 $0.90 Y  Material Info PCN Purchase Sample
    AD5259BRMZ100-R7 Status: Production 10 ld MSOP 10 Ind Reel, 1000 - $0.90 Y  Material Info PCN Purchase
    AD5259BRMZ5 Status: Production 10 ld MSOP 10 Ind Tube, 50 $1.00 $0.90 Y  Material Info PCN Purchase Sample
    AD5259BRMZ5-R7 Status: Production 10 ld MSOP 10 Ind Reel, 1000 - $0.90 Y  Material Info PCN Purchase
    AD5259BRMZ50 Status: Production 10 ld MSOP 10 Ind Tube, 50 $1.00 $0.90 Y  Material Info PCN Purchase Sample
    AD5259BRMZ50-R7 Status: Production 10 ld MSOP 10 Ind Reel, 1000 - $0.90 Y  Material Info PCN Purchase
    Price Table Help

    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.

    AD5259 Evaluation Board
    Model Description Price RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    EVAL-AD5259DBZ Status: Production Evaluation Board $59.00 Yes -
    EVAL-SDP-CS1Z Status: Production Evaluation Controller Board $49.00 Yes -

    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.

    Check Inventory & Purchase

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