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 1 - 20 of 716 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. 144-9093
Mfr. Part No.MCP41010-E/P
BrandMicrochip
PHP57.612
Each (In a Tube of 60)
units
Serial-SPI 10kΩ 256 Linear - 1 Through Hole PDIP 8 Single 3.3 V, 5 V - 9.27 x 6.35 x 3.3mm 3.3mm
RS Stock No. 403-676
Mfr. Part No.MCP41010-E/P
BrandMicrochip
PHP76.70
Each (In a Pack of 5)
units
Serial-SPI 10kΩ 256 Linear - 1 Through Hole PDIP 8 Single 3.3 V, 5 V - 9.27 x 6.35 x 3.3mm 3.3mm
RS Stock No. 538-4858
Mfr. Part No.AD5254BRUZ100
PHP308.70
Each
units
Serial-2 Wire, Serial-I2C 100kΩ 256 Linear Non-Volatile 4 Surface Mount TSSOP 20 Dual, Single 3 V, 5 V ±2.5V 6.5 x 4.4 x 1.05mm 1.05mm
RS Stock No. 144-5722
Mfr. Part No.MCP41100-E/P
BrandMicrochip
PHP57.612
Each (In a Tube of 60)
units
Serial-SPI 100kΩ 256 Linear - 1 Through Hole PDIP 8 Single 3.3 V, 5 V - 9.27 x 6.35 x 3.3mm 3.3mm
RS Stock No. 403-654
Mfr. Part No.MCP41100-E/P
BrandMicrochip
PHP76.70
Each (In a Pack of 5)
units
Serial-SPI 100kΩ 256 Linear - 1 Through Hole PDIP 8 Single 3.3 V, 5 V - 9.27 x 6.35 x 3.3mm 3.3mm
RS Stock No. 158-0157
Mfr. Part No.AD5254BRUZ100
PHP233.524
Each (In a Tube of 75)
units
Serial-2 Wire, Serial-I2C 100kΩ 256 Linear Non-Volatile 4 Surface Mount TSSOP 20 Dual, Single 3 V, 5 V ±2.5V 6.5 x 4.4 x 1.05mm 1.05mm
RS Stock No. 738-6799
Mfr. Part No.MCP4017T-104E/LT
BrandMicrochip
PHP25.794
Each (In a Pack of 5)
units
Serial-I2C 100kΩ 128 Linear Volatile 1 Surface Mount SC-70 6 Single 1.8 → 5.5 V - 2 x 1.25 x 1mm 1mm
RS Stock No. 139-284
Mfr. Part No.DS18030-010+
BrandMaxim
PHP247.80
Each
units
Serial-2 Wire 10kΩ 256 Linear Volatile 2 Through Hole PDIP 16 Single 3 V, 5 V - 19.43 x 7.87 x 4.45mm 4.45mm
RS Stock No. 738-6976
Mfr. Part No.MCP4131-503E/SN
BrandMicrochip
PHP33.786
Each (In a Pack of 5)
units
Serial-SPI 50kΩ 129 Linear Volatile 1 Surface Mount SOIC 8 Single 1.8 → 5.5 V - 4.9 x 3.9 x 1.25mm 1.25mm
RS Stock No. 139-464
Mfr. Part No.DS1804Z-050+
BrandMaxim
PHP145.00
Each
units
Increment/Decrement 50kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 3 V, 5 V - 5 x 4 x 1.5mm 1.5mm
RS Stock No. 165-3382
Mfr. Part No.MCP4017T-104E/LT
BrandMicrochip
PHP20.539
Each (On a Reel of 3000)
units
Serial-I2C 100kΩ 128 Linear Volatile 1 Surface Mount SC-70 6 Single 1.8 → 5.5 V - 2 x 1.25 x 1mm 1mm
RS Stock No. 523-7386
Mfr. Part No.AD8403ARZ10
PHP363.73
Each
units
Serial-3 Wire, Serial-SPI 10kΩ 256 Linear Volatile 4 Surface Mount SOIC W 24 Single 3 V, 5 V - 15.6 x 7.6 x 2.35mm 2.35mm
RS Stock No. 177-6853
Mfr. Part No.DS18030-010+
BrandMaxim
PHP224.18
Each (In a Tube of 25)
units
Serial-2 Wire 10kΩ 256 Linear Volatile 2 Through Hole PDIP 16 Single 3 V, 5 V - 19.43 x 7.87 x 4.45mm 4.45mm
RS Stock No. 169-8256
Mfr. Part No.DS1804Z-050+
BrandMaxim
PHP115.50
Each (In a Tube of 100)
units
Increment/Decrement 50kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 3 V, 5 V - 5 x 4 x 1.5mm 1.5mm
RS Stock No. 912-7463
Mfr. Part No.AD8403ARZ10
PHP312.993
Each (In a Tube of 31)
units
Serial-3 Wire, Serial-SPI 10kΩ 256 Linear Volatile 4 Surface Mount SOIC W 24 Single 3 V, 5 V - 15.6 x 7.6 x 2.35mm 2.35mm
RS Stock No. 160-9980
Mfr. Part No.AD8400ARZ10
PHP109.934
Each (In a Tube of 98)
units
Serial-3 Wire, Serial-SPI 10kΩ 256 Linear Volatile 1 Surface Mount SOIC 8 Single 3 V, 5 V - 5 x 4 x 1.5mm 1.5mm
RS Stock No. 160-4481
Mfr. Part No.AD5247BKSZ10-RL7
PHP40.372
Each (On a Reel of 3000)
units
I2C, Serial-2 Wire 10kΩ 128 - Non-Volatile 1 Surface Mount SC-70 6 Single 2.7 → 5.5 V - 2.2 x 1.35 x 1mm 1mm
RS Stock No. 145-8959
Mfr. Part No.MCP4651-103E/ST
BrandMicrochip
PHP38.542
Each (In a Tube of 96)
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. 889-5411
Mfr. Part No.MCP42010-E/SL
BrandMicrochip
PHP79.711
Each (In a Tube of 57)
units
Serial-SPI 10kΩ 256 Linear - 2 Surface Mount SOIC 14 Single 3.3 V, 5 V - 8.65 x 3.9 x 1.25mm 1.25mm
RS Stock No. 165-9692
Mfr. Part No.MAX5487EUD+
BrandMaxim
PHP144.90
Each (In a Tube of 96)
units
Serial-3 Wire, Serial-SPI 10kΩ 256 Linear Non-Volatile 2 Surface Mount TSSOP 14 Single 2.7 → 5.25 V - 5.1 x 4.5 x 0.95mm 0.95mm
Related Products
The MCP466X devices are dual channel, non-volatile, 8-bit ...
Description:
The MCP466X devices are dual channel, non-volatile, 8-bit (257 wiper steps) digital potentiometers with EEPROM and an I2C compatible interface. The MCP466X family is available with end-to-end resistor values of 5KΩ, 10KΩ, 50kΩ and 100KΩ. These devices offer WiperLock™ Technology ...
The AUIPS7111S is a fully protected four terminal ...
Description:
The AUIPS7111S is a fully protected four terminal high side switch. It features current sensing, over-current, over-temperature, ESD protection and drain to source active clamp. When the input voltage Vcc - Vin is higher than the specified threshold, the output ...
The AUIR3315(S) is a fully protected 4 terminals ...
Description:
The AUIR3315(S) is a fully protected 4 terminals high side switch. The input signal is referenced to Vcc. When the input voltage Vcc - Vin is higher than the specified threshold, the output power Mosfet is turned on. When the ...
256-positionEnd-to-end resistance: 5 kΩ, 10 kΩ, 50 kΩ, ...
Description:
256-positionEnd-to-end resistance: 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩCompact SOT-23-8 (2.9 mm ´ 3 mm) packageSPI-compatible interfacePower-on preset to midscaleSingle supply: 2.7 V to 5.5 VLow temperature coefficient: 45 ppm/°CLow power, IDD = 8 μAWide operating temperature: –40°C to ...