Features and Benefits
- Single-channel, 256-/1024-position resolution
- 20 kΩ, 50 kΩ, and 100 kΩ nominal resistance
- Maximum ±1% nominal resistor tolerance error (resistor performance mode)
- 20-times programmable wiper memory
- Rheostat mode temperature coefficient: 35 ppm/°C
- Voltage divider temperature coefficient: 5 ppm/°C
- +9 V to +33 V single-supply operation
- ±9 V to ±16.5 V dual-supply operation
- SPI-compatible serial interface
- Wiper setting readback
- Power-on refreshed from 20-TP memory
- Download AD5292-EP Data Sheet (pdf)
- Temperature range: −55°C to +125°C
- Controlled manufacturing baseline
- One assembly/test site
- One fabrication site
- Enhanced product change notification
- Qualification data available on request
- V62/12616 DSCC Drawing Number
The AD5291 and AD5292 are single-channel, 256-/1024-position digital potentiometers that combine industry leading variable resistor performance with nonvolatile memory (NVM) in a compact package. These devices are capable of operating across a wide voltage range, supporting both dual supply operation at ±10.5 V to ±16.5 V and single supply operation at +21 V to +33 V, while ensuring less than 1% end-to-end resistor tolerance error and offering 20-time programmable (20-TP) memory.
The guaranteed industry leading low resistor tolerance error feature simplifies open-loop applications as well as precision calibration and tolerance matching applications.
The AD5291 and AD5292 device wiper settings are controllable through the SPI digital interface. Unlimited adjustments are allowed before programming the resistance value into the 20-TP memory. The AD5291 and AD5292 do not require any external voltage supply to facilitate fuse blow, and there are 20 opportunities for permanent programming. During 20-TP activation, a permanent blow fuse command freezes the wiper position (analogous to placing epoxy on a mechanical trimmer).
The AD5291 and AD5292 are available in a compact 14-lead TSSOP package. The part is guaranteed to operate over the extended industrial temperature range of −40°C to +105°C.
- Mechanical potentiometer replacement
- Instrumentation: gain and offset adjustment
- Programmable voltage-to-current conversion
- Programmable filters, delays, and time constants
- Programmable power supply
- Low resolution DAC replacement
- Sensor calibration
Product Lifecycle 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.
Evaluation Kits (1)
This user guide describes the full featured EVAL-AD5292DBZ board for evaluating the AD5292 digital potentiometer. The AD5292 is a single-channel, 1024-position digital potentiometer with less than ±1% end to end resistor tolerance error and 20-time programmable (20-TP) memory. The AD5292 is capable of operating at high voltages, supporting both dual supply ±10.5 V to ±16.5 V and single supply 21 V to 33 V operation.
The AD5292 uses a serial interface that operates at clock rates of up to 50 MHz and is compatible with the standard serial peripheral interface (SPI).
The EVAL-AD5292DBZ incorporates an internal power supply from the USB and allows an external power supply for the logic voltage levels. The logic voltage levels operate from single 2.7 V to 5.5 V supplies. The EVAL-AD5292DBZ can operate in single supply and dual supply modes, and incorporates an output buffer.
Complete specifications for the AD5292 can be found in the AD5292 data sheet available from Analog Devices, Inc., and must be consulted in conjunction with this user guide when using the evaluation board.
Documentation & Resources
AN-1291: Digital Potentiometers: Frequently Asked Questions8/18/2020
AN-1578: Low Cost, High Voltage, Programmable Gain In-Amp Using the AD5292 Digital Potentiometer and the AD8221 In-Amp8/29/2018
AN-1577: Variable Gain Noninverting Amplifier Using the AD5292 Digital Potentiometer and the OP184 Op Amp8/29/2018
AN-1205: 30 V Low Cost DAC Using the AD5292 Digital Potentiometer (Rev. B)5/8/2013
AN-1209: Logarithmic Audio Volume Control with Glitch Reduction Using the AD5292 Digital Potentiometer (Rev. B)5/8/2013
AN-1206: Variable Gain Inverting Amplifier Using the AD5292 Digital Potentiometer and the OP184 Op Amp (Rev. C)5/8/2013
AN-1208: Programmable Bidirectional Current Source Using the AD5292 Digital Potentiometer and the ADA4091-4 Op Amp (Rev. C)5/7/2013
AN-1207: Programmable High Voltage Source with Boosted Output Current Using the AD5292 Digital Potentiometer, OP184 Op Amp, and MOSFETs (Rev. B)5/7/2013
Rotary Potentiometers: There Must Be a Better Option10/1/2011
The Benefits of Ancient Logic9/1/2011
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Some Chips Have Moving Parts!8/1/2009
Which carries more weight, a datasheet or SPICE macromodel?7/1/2009
What shall we do with an unused op-amp?6/1/2009
Glass Diodes May See the Light — and Hum5/1/2009
What’s in Your Toolbox?1/1/2009
How Big Is It?12/1/2008
Single Supply Amplifiers—They Sound Simple…are they?10/1/2008
Lock Down That Noise — Don’t Let It Escape9/1/2008
The Difference Between Different Differential Amplifiers8/1/2008
Stress Is Bad For You — and For Analog ICs7/1/2008
Hysteresis Blocks Magic5/1/2008
Too Hot or Too Cold May Be Just Right*3/1/2008
Half Full or Half Empty? Thoughts on Capacity.1/1/2008
What's Your Amplifier's Febricity Due to Electricity?12/1/2007
Resistors Have Hidden Depths11/1/2007
Op-Amp Noise can be Deafening Too10/1/2007
Resistor Noise can be Deafening, and Hard to Reduce9/1/2007
Should you butcher your circuit or your test gear?6/1/2007
Breadboarding With Surface Mount ICs4/1/2007
Igor, pass me some supply sequencers!3/1/2007
Observing Maximum Ratings or How to Avoid Forecasts of Doom2/1/2007
Just How Accurate was William Tell, Anyway?1/1/2007
More Chips are Better than One (or the Benefits of Belgian Food)12/1/2006
Replacing Optocouplers with Digital Isolators11/1/2006
Some Tips on Making a FETching Discrete Amplifier10/1/2013 Analog Dialogue
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Software & Systems Requirements
Tools & Simulations
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|
|AD5292BRUZ-100||Material Declaration||Reliability Data||14-Lead TSSOP|
|AD5292BRUZ-100-RL7||Material Declaration||Reliability Data||14-Lead TSSOP|
|AD5292BRUZ-20||Material Declaration||Reliability Data||14-Lead TSSOP|
|AD5292BRUZ-20-RL7||Material Declaration||Reliability Data||14-Lead TSSOP|
|AD5292BRUZ-50||Material Declaration||Reliability Data||14-Lead TSSOP|
|AD5292BRUZ-50-RL7||Material Declaration||Reliability Data||14-Lead TSSOP|
|AD5292SRUZ-20-EP||Material Declaration||Reliability Data||14-Lead TSSOP|
|Wafer Fabrication Data|
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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.