Digital Potentiometers

What is a Digital potentiometer?
Digital Potentiometers are a three terminal device, two fixed end terminals and one wiper terminal which is used to vary the resistance.
A Digital potentiometer also known as digipot, is similar to a standard analogue potentiometer, which is a variable resistor except the digital potentiometer has an integrated chip (IC) that accepts a signal input rather than the physical movement of a shaft or slide for adjustment. Potentiometers physically change the resistance value whereas digital potentiometers modify the resistance value via digital inputs rather than a rotary wheel or a slider.
Where might I use one?
Digital potentiometers would be beneficial where environmental factors would impact a mechanical potentiometer in areas where there is vibration, dust, moisture or grease as digital potentiometers are encapsulated they offer better protection, they are also less vunerable to vibration Digital potentiometers are used to calibrate system tolerances or control system parameters.

What are the advantages over a mechanical potentiometer?
Digital potentiometers can be operated in a closed control loop and don’t need physical access to be adjusted. . They offer better stability and reliability and as digital will offer additional functionality, some even have on - chip memory
Applications
• System calibration
• Process control
• Sensor calibration
• Smart actuator
• Voltage margining
• Programmable power supplies
• Volume control

...
Read more Read less

Filters

Viewing 21 - 40 of 684 products
Results per page
Description Price Control Interface Resistance Value Number of Positions Taper Type Memory Type Number of Pots per Package Mounting Type Package Type Pin Count Power Supply Type Typical Single Supply Voltage Typical Dual Supply Voltage Dimensions Height
RS Stock No. 121-6915
Mfr. Part No.AD5270BRMZ-20
SGD5.06
Each (In a Tube of 50)
units
Serial 20kΩ 1024 - Non-Volatile 1 Surface Mount MSOP 10 Dual, Single 2.7 → 5.5 V ±2.5 → ±2.75V 3.1 x 3.1 x 0.95mm 0.95mm
RS Stock No. 158-0466
Mfr. Part No.AD5227BUJZ10-R2
SGD2.22
Each (On a Reel of 250)
units
Serial-3 Wire 10kΩ 64 - Volatile 1 Surface Mount TSOT 8 Single 3 V, 5 V - 2.9 x 1.6 x 0.87mm 0.87mm
RS Stock No. 160-3302
Mfr. Part No.AD5228BUJZ10-RL7
SGD0.873
Each (On a Reel of 3000)
units
Up/Down 100kΩ 32 Linear - 1 Surface Mount TSOT 8 Single 2.7 → 5.5 V - 2.9 x 1.6 x 0.9mm 0.9mm
RS Stock No. 669-6367
Mfr. Part No.MCP42010-I/P
BrandMicrochip
SGD3.155
Each (In a Pack of 2)
units
Serial-SPI 10kΩ 256 Linear - 2 Through Hole PDIP 14 Single 3.3 V, 5 V - 19.05 x 6.35 x 3.3mm 3.3mm
RS Stock No. 111-1163
Mfr. Part No.AD5220BNZ10
SGD3.96
Each (In a Tube of 50)
units
Serial-3 Wire 10kΩ 128 - Volatile 1 Through Hole PDIP 8 Single 3 V, 5 V - 9.27 x 7.24 x 3.43mm 3.43mm
RS Stock No. 497-1489
Mfr. Part No.AD5231BRUZ100
SGD7.72
Each
units
Serial-2 Wire, Serial-I2C 100kΩ 1024 Linear, Log Non-Volatile 1 Surface Mount TSSOP 16 Dual, Single 3 V, 5 V ±2.5V 5 x 4.4 x 1.05mm 1.05mm
RS Stock No. 523-6816
Mfr. Part No.AD5220BNZ10
SGD5.17
Each
units
Serial-3 Wire 10kΩ 128 - Volatile 1 Through Hole PDIP 8 Single 3 V, 5 V - 9.27 x 7.24 x 3.43mm 3.43mm
RS Stock No. 160-4479
Mfr. Part No.AD5171BRJZ100-R2
SGD3.45
Each (On a Reel of 250)
units
I2C, Serial-2 Wire 100kΩ 64 Linear Non-Volatile 1 Surface Mount SOT-23 8 Single 2.7 → 5.5 V - 2.9 x 1.6 x 1.3mm 1.3mm
RS Stock No. 145-6776
Mfr. Part No.AD5206BRZ100
SGD6.51
Each (In a Tube of 31)
units
Serial-3 Wire, Serial-SPI 100kΩ 256 - Volatile 6 Surface Mount SOIC W 24 Dual, Single 3 V, 5 V ±2.5V 15.6 x 7.6 x 2.35mm 2.35mm
RS Stock No. 161-0584
Mfr. Part No.AD5231BRUZ100
SGD5.91
Each (In a Tube of 96)
units
Serial-2 Wire, Serial-I2C 100kΩ 1024 Linear, Log Non-Volatile 1 Surface Mount TSSOP 16 Dual, Single 3 V, 5 V ±2.5V 5 x 4.4 x 1.05mm 1.05mm
RS Stock No. 709-5727
Mfr. Part No.AD5206BRZ100
SGD8.09
Each
units
Serial-3 Wire, Serial-SPI 100kΩ 256 - Volatile 6 Surface Mount SOIC W 24 Dual, Single 3 V, 5 V ±2.5V 15.6 x 7.6 x 2.35mm 2.35mm
RS Stock No. 165-3467
Mfr. Part No.MCP4161-103E/P
BrandMicrochip
SGD1.233
Each (In a Tube of 60)
units
Serial-SPI 10kΩ 257 Linear Non-Volatile 1 Through Hole PDIP 8 Single 1.8 → 5.5 V - 0.4 x 0.28 x 0.195in 4.95mm
RS Stock No. 146-0134
Mfr. Part No.MCP42010-I/P
BrandMicrochip
SGD2.584
Each (In a Tube of 30)
units
Serial-SPI 10kΩ 256 Linear - 2 Through Hole PDIP 14 Single 3.3 V, 5 V - 19.05 x 6.35 x 3.3mm 3.3mm
RS Stock No. 819-7086
Mfr. Part No.AD5171BRJZ100-R2
SGD5.20
Each (In a Pack of 5)
units
I2C, Serial-2 Wire 100kΩ 64 Linear Non-Volatile 1 Surface Mount SOT-23 8 Single 2.7 → 5.5 V - 2.9 x 1.6 x 1.3mm 1.3mm
RS Stock No. 820-9022
Mfr. Part No.AD5270BRMZ-20
SGD6.62
Each (In a Pack of 2)
units
Serial 20kΩ 1024 - Non-Volatile 1 Surface Mount MSOP 10 Dual, Single 2.7 → 5.5 V ±2.5 → ±2.75V 3.1 x 3.1 x 0.95mm 0.95mm
RS Stock No. 669-6449
Mfr. Part No.MCP4651-103E/ST
BrandMicrochip
SGD1.35
Each (In a Pack of 5)
units
Serial-2 Wire, Serial-I2C 10kΩ 256 - Volatile 2 Surface Mount TSSOP 14 Single 2.5 V, 3.3 V, 5 V - 5 x 4.4 x 1mm 1mm
RS Stock No. 709-5749
Mfr. Part No.AD5222BRZ10
SGD4.11
Each (In a Pack of 5)
units
Increment/Decrement 10kΩ 128 - Volatile 2 Surface Mount SOIC 14 Dual, Single 3 V, 5 V ±2.5V 8.75 x 4 x 1.5mm 1.5mm
RS Stock No. 191-3377
Mfr. Part No.MAX5455EUD+
SGD6.61
Each (In a Pack of 5)
units
Up/Down 100kΩ 256 Linear - 2 Surface Mount TSSOP 14 Single 2.7 → 5.5 V - 5.1 x 4.5 x 0.95mm 0.95mm
RS Stock No. 809-9332
Mfr. Part No.AD5116BCPZ5-500R7
SGD2.768
Each (On a Tape of 5)
units
Push Button 5kΩ 64 Linear Non-Volatile 1 Surface Mount LFCSP UD 8 Single 2.3 → 5.5 V - 2 x 2 x 0.6mm 0.6mm
RS Stock No. 189-8594
Mfr. Part No.MAX5483EUD+
SGD6.16
Each (In a Pack of 5)
units
Serial-SPI 10kΩ 1024 Linear Non-Volatile 1 Surface Mount TSSOP 14 Dual, Single 2.7 → 5.25 V ±2.5V 5.1 x 4.5 x 0.95mm 0.95mm
Related Products
The ADuCM360 is a 3.9kSPS, 24-bit data acquisition ...
Description:
The ADuCM360 is a 3.9kSPS, 24-bit data acquisition system that incorporates dual multichannel sigma-delta (Σ-Δ) analogue-to-digital converters (ADCs), an ARM Cortex-M3 core processor and memory on a single chip. The ADuCM361 has a single ADC. 2 x 24-bit multichannel Σ-Δ ...
Single-channel, 1024-/256-position resolution20 kΩ, 50 kΩ and 100 ...
Description:
Single-channel, 1024-/256-position resolution20 kΩ, 50 kΩ and 100 kΩnominal resistanceMaximum ±1% nominal resistor tolerance error50-times programmable (50-TP) wiper memoryRheostat mode temperature coefficient: 5 ppm/°C2.7 V to 5.5 V single-supply operation±2.5 V to ±2.75 V dual-supply operation for ac or bipolar ...
1024 Tap PositionsPower-On Recall of Wiper Position from ...
Description:
1024 Tap PositionsPower-On Recall of Wiper Position from Nonvolatile Memory16-Pin (3mm x 3mm x 0.8mm) TQFN or 14-Pin TSSOP Package35ppm/°C End-to-End Resistance Temperature Coefficient5ppm/°C Ratiometric Temperature Coefficient10kΩ and 50kΩ End-to-End Resistor ValuesPin-Selectable SPI-Compatible Serial Interface ...
Operates from 3V or 5V power suppliesUltra low-power ...
Description:
Operates from 3V or 5V power suppliesUltra low-power consumptionDual digitally controlled, 65-position potentiometersLogarithmic resistance characteristic (1dB per step)Zero crossing eliminates noise caused by discrete wiper changes2-wire addressable control interfaceIndustrial operating temperature range: -40°C ...