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 121 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. 191-3289
Mfr. Part No.DS1845E-010+T&R
€1.993
Each (On a Reel of 1000)
units
- 10kΩ 100 Linear Non-Volatile 2 Surface Mount TSSOP 14 Single 2.7 → 5.5 V - 5.1 x 4.5 x 0.95mm 0.95mm
RS Stock No. 190-6897
Mfr. Part No.MAX5496ETE+
€6.22
Each
units
- - - - - - - - - - - - - -
RS Stock No. 190-4772
Mfr. Part No.MAX5400EKA+T
€1.172
Each (On a Reel of 2500)
units
- 50kΩ 256 Linear Volatile 1 Surface Mount SOT-23 8 Single 2.7 5.5 V - 3 x 1.75 x 1.3mm 1.3mm
RS Stock No. 190-4773
Mfr. Part No.MAX5401EKA+T
€1.153
Each (On a Reel of 2500)
units
- 100kΩ 256 Linear Volatile 1 Surface Mount SOT-23 8 Single 2.7 5.5 V - 3 x 1.75 x 1.3mm 1.3mm
New
RS Stock No. 191-3780
Mfr. Part No.DS3502U+T&R
€0.786
Each (In a Pack of 10)
units
I2C 10kΩ 128 Linear Non-Volatile 1 Surface Mount μSOP 10 Single 2.5 → 5.5 V - 3.16 x 3.12 x 0.95mm 0.95mm
New
RS Stock No. 191-3243
Mfr. Part No.DS3502U+T&R
€0.715
Each (On a Reel of 3000)
units
I2C 10kΩ 128 Linear Non-Volatile 1 Surface Mount μSOP 10 Single 2.5 → 5.5 V - 3.16 x 3.12 x 0.95mm 0.95mm
RS Stock No. 189-7150
Mfr. Part No.DS1803Z-010+
€3.547
Each (In a Tube of 50)
units
Serial-2 Wire 10kΩ 256 Linear Volatile 2 Surface Mount SOIC 16 Single 5 V - 10 x 4 x 1.5mm 1.5mm
RS Stock No. 190-5185
Mfr. Part No.DS1801S+
€10.16
1 Pack of 2
Pack(s)
- 45kΩ 65 Log - 2 Surface Mount SOIC 16 Single 2.7 → 5.5 V - 10.5 x 7.6 x 2.35mm 2.35mm
RS Stock No. 192-2707
Mfr. Part No.MAX5487EUD+
€2.872
Each (In a Pack of 5)
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
RS Stock No. 189-8642
Mfr. Part No.MAX5494ETE+
€6.495
Each (In a Pack of 2)
units
Serial-SPI 10kΩ 1024 Linear Non-Volatile 1 Surface Mount TQFN 16 Dual 2.7 → 5.25 V ±2.5V 5.1 x 5.1 x 0.75mm 0.75mm
RS Stock No. 189-7156
Mfr. Part No.DS1804Z-050+
€1.875
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. 190-4774
Mfr. Part No.MAX5402EUA+T
€1.372
Each (On a Reel of 2500)
units
- 10kΩ 256 Linear - 1 Surface Mount μMAX 8 Single 2.7 5.5 V - 3.1 x 3.1 x 0.95mm 0.95mm
RS Stock No. 190-5361
Mfr. Part No.MAX5477ETE+
€15.25
1 Pack of 5
Pack(s)
I2C 10kΩ 256 Linear Non-Volatile 2 Surface Mount TQFN-EP 16 Single 2.7 → 5.25 V - 3 x 3 x 0.75mm 0.75mm
RS Stock No. 191-5109
Mfr. Part No.DS1881Z-050+
€1.535
Each (In a Pack of 10)
units
I2C 45 (Typ.)kΩ 64 Log Non-Volatile 2 Surface Mount SOIC 16 Single 5.5 (Max.) V - 10 x 4 x 1.5mm 1.5mm
RS Stock No. 189-7163
Mfr. Part No.MAX5436EUB+
€5.081
Each (In a Tube of 50)
units
Serial-SPI 50kΩ 128 - - 1 Surface Mount μMAX 10 Dual, Single 10 → 30 V ±5 to ±15V 3.05 x 3.05 x 0.95mm 0.95mm
RS Stock No. 177-6853
Mfr. Part No.DS18030-010+
€3.805
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. 189-7167
Mfr. Part No.MAX5494ETE+
€5.417
Each (In a Tube of 60)
units
Serial-SPI 10kΩ 1024 Linear Non-Volatile 1 Surface Mount TQFN 16 Dual 2.7 → 5.25 V ±2.5V 5.1 x 5.1 x 0.75mm 0.75mm
RS Stock No. 189-7151
Mfr. Part No.DS1804-010+
€2.123
Each (In a Tube of 50)
units
Increment 10kΩ 100 Linear Non-Volatile 1 Through Hole PDIP 8 Single 5 V - 9.91 x 7.87 x 4.45mm 4.45mm
RS Stock No. 189-8502
Mfr. Part No.DS1804-100+
€2.478
Each (In a Pack of 5)
units
Increment/Decrement 100kΩ 100 Linear Non-Volatile 1 Through Hole PDIP 8 Single 3 V, 5 V - 9.91 x 7.87 x 4.45mm 4.45mm
RS Stock No. 189-8287
Mfr. Part No.DS1803Z-010+
€4.125
Each (In a Pack of 2)
units
Serial-2 Wire 10kΩ 256 Linear Volatile 2 Surface Mount SOIC 16 Single 5 V - 10 x 4 x 1.5mm 1.5mm