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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Viewing 1 - 20 of 34 products
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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. 921-5352
Mfr. Part No.X9313WSZ
HK$36.42
Each (In a Pack of 2)
units
Serial-3 Wire 10kΩ 32 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
RS Stock No. 196-9003
Mfr. Part No.ISL95810UIU8Z-T
HK$11.253
Each (On a Reel of 2500)
units
- - - - - - - - 8 - - - - -
RS Stock No. 196-9009
Mfr. Part No.X9511WSIZ
HK$30.756
Each (In a Tube of 100)
units
- - 32 - - - - - 8 - - - - -
RS Stock No. 196-9004
Mfr. Part No.ISL95810UIU8Z-T
HK$22.382
Each (In a Pack of 5)
units
- - - - - - - - 8 - - - - -
RS Stock No. 921-5535
Mfr. Part No.X9C503PZ
HK$45.48
Each (In a Pack of 2)
units
Serial-3 Wire 50kΩ 100 Linear Non-Volatile 1 Through Hole PDIP 8 Single 5 V - 9.56 x 6.35 x 3.3mm 3.3mm
RS Stock No. 196-9010
Mfr. Part No.X9511WSIZ
HK$44.155
Each (In a Pack of 2)
units
- - 32 - - - - - 8 - - - - -
RS Stock No. 921-5680
Mfr. Part No.X9C102SZ
HK$52.55
Each (In a Pack of 2)
units
Serial-3 Wire 1kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
RS Stock No. 146-2404
Mfr. Part No.X9C503PZ
HK$38.65
Each (In a Tube of 50)
units
Serial-3 Wire 50kΩ 100 Linear Non-Volatile 1 Through Hole PDIP 8 Single 5 V - 9.56 x 6.35 x 3.3mm 3.3mm
RS Stock No. 170-8170
Mfr. Part No.X9C103SZ
HK$33.42
Each (In a Tube of 100)
units
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 Stock No. 923-1474
Mfr. Part No.X9C102SZ
HK$36.68
Each (In a Tube of 100)
units
Serial-3 Wire 1kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
RS Stock No. 196-9008
Mfr. Part No.X9119TV14IZ-2.7
HK$116.51
Each
units
- - - - - - - - 14 - - - - -
RS Stock No. 193-1543
Mfr. Part No.ISL90728WIE627Z-T7A
HK$16.398
Each (In a Pack of 5)
units
Serial-I2C 10kΩ 128 - Volatile 1 Surface Mount SC-70 6 Single 2.7 to 5.5 V - 2.15 x 1.35 x 1mm 1mm
RS Stock No. 196-9006
Mfr. Part No.ISL95810WIU8Z
HK$22.382
Each (In a Pack of 5)
units
- - - - - - - - 8 - - - - -
RS Stock No. 196-9005
Mfr. Part No.ISL95810WIU8Z
HK$18.952
Each (In a Tube of 80)
units
- - - - - - - - 8 - - - - -
RS Stock No. 196-9016
Mfr. Part No.X9C104SIZ
HK$55.97
Each (In a Pack of 2)
units
- - 32 - - - - - 8 - - - - -
RS Stock No. 196-8999
Mfr. Part No.ISL90727WIE627Z-TK
HK$10.661
Each (In a Pack of 10)
units
- - - - - - - - 6 - - - - -
RS Stock No. 196-9014
Mfr. Part No.X9C102SIZ
HK$56.845
Each (In a Pack of 2)
units
- - 32 - - - - - 8 - - - - -
RS Stock No. 921-5368
Mfr. Part No.X9C103PZ
HK$47.88
Each (In a Pack of 2)
units
Serial-3 Wire 10kΩ 100 Linear Non-Volatile 1 Through Hole PDIP 8 Single 5 V - 9.56 x 6.35 x 3.3mm 3.3mm
RS Stock No. 921-5349
Mfr. Part No.X9C103SZ
HK$47.88
Each (In a Pack of 2)
units
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 Stock No. 921-5848
Mfr. Part No.X9C102PZ
HK$34.62
Each (In a Pack of 2)
units
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