Digital Potentiometers

Digital Potentiometers are three-terminal devices, two fixed end terminals and one wiper terminal which are used to vary resistance.

What is a Digital potentiometer?

A digital potentiometer also known as a digipot, is similar to a standard analogue potentiometer, which is a variable type resistor except the digital potentiometer has an IC (integrated circuit) that can take a signal input rather. 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 vulnerable 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

...
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Omschrijving Prijs 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-stocknr. 170-8222
FabrikantnummerX9C102PZ
FabrikantIntersil
€ 4,161
Each (In a Tube of 50)
Aantal stuks
Serial-3 Wire 1kΩ 100 Linear Non-Volatile 1 Through Hole PDIP 8 Single 5 V - 9.56 x 6.35 x 3.3mm 3.3mm
RS-stocknr. 170-8191
FabrikantnummerX9C103SIZ
FabrikantIntersil
€ 3,789
Each (In a Tube of 100)
Aantal stuks
Serial-3 Wire 10kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
RS-stocknr. 100-0181
FabrikantnummerX95840WV20IZ-2.7
FabrikantIntersil
€ 5,74
Each
Aantal stuks
Serial-I2C 10kΩ 256 - Non-Volatile 3 Surface Mount TSSOP 20 Single 2.7 to 5.5 V - 6.5 x 4.4 x 0.9mm 0.9mm
RS-stocknr. 146-2380
FabrikantnummerX9241AYVIZ
FabrikantIntersil
€ 9,587
Each (In a Tube of 75)
Aantal stuks
Serial-2 Wire 2kΩ 64 - Non-Volatile 3 Surface Mount TSSOP 20 Single 5 V - 6.5 x 4.4 x 0.9mm 0.9mm
RS-stocknr. 169-8284
FabrikantnummerISL22316WFU10Z
FabrikantIntersil
€ 0,503
Each (In a Tube of 50)
Aantal stuks
Serial-I2C 10kΩ 128 Linear Non-Volatile 1 Surface Mount MSOP 10 Single 3.3 V, 5 V - 3.05 x 3.05 x 0.95mm 0.95mm
RS-stocknr. 516-552
FabrikantnummerISL22316WFU10Z
FabrikantIntersil
€ 0,518
Each (In a Pack of 5)
Aantal stuks
Serial-I2C 10kΩ 128 Linear Non-Volatile 1 Surface Mount MSOP 10 Single 3.3 V, 5 V - 3.05 x 3.05 x 0.95mm 0.95mm
RS-stocknr. 518-368
FabrikantnummerX9111TV14IZ
FabrikantIntersil
€ 10,18
Each
Aantal stuks
Serial-SPI 100kΩ 1024 Linear Non-Volatile 1 Surface Mount TSSOP 14 Single 5 V - 5.05 x 4.5 x 1.05mm 1.05mm
RS-stocknr. 169-8294
FabrikantnummerX9111TV14IZ
FabrikantIntersil
€ 7,662
Each (In a Tube of 95)
Aantal stuks
Serial-SPI 100kΩ 1024 Linear Non-Volatile 1 Surface Mount TSSOP 14 Single 5 V - 5.05 x 4.5 x 1.05mm 1.05mm
RS-stocknr. 170-8096
FabrikantnummerX95840WV20IZ-2.7
FabrikantIntersil
€ 4,946
Each (In a Tube of 75)
Aantal stuks
Serial-I2C 10kΩ 256 - Non-Volatile 3 Surface Mount TSSOP 20 Single 2.7 to 5.5 V - 6.5 x 4.4 x 0.9mm 0.9mm
RS-stocknr. 100-0654
FabrikantnummerX9241AYVIZ
FabrikantIntersil
€ 10,88
Each
Aantal stuks
Serial-2 Wire 2kΩ 64 - Non-Volatile 3 Surface Mount TSSOP 20 Single 5 V - 6.5 x 4.4 x 0.9mm 0.9mm