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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Beskrivning Pris 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-artikelnummer 921-5535
Tillv. art.nrX9C503PZ
60,305 kr
Each (In a Pack of 2)
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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-artikelnummer 192-2698
Tillv. art.nrMAX5478EUD+
VarumärkeMaxim Integrated
35,148 kr
Each (In a Pack of 5)
Enheter
Serial-I2C 50kΩ 256 Linear Non-Volatile 1 Surface Mount TSSOP 14 Dual 2.7 to 5.25 V - 5.1 x 4.5 x 0.95mm 0.95mm
RS-artikelnummer 921-5844
Tillv. art.nrX9241AUSIZ
117,09 kr
Each
Enheter
Serial-2 Wire 50kΩ 64 Linear Non-Volatile 4 Surface Mount SOIC 20 Single 5 V - 12.8 x 7.49 x 2.34mm 2.34mm
RS-artikelnummer 169-8294
Tillv. art.nrX9111TV14IZ
VarumärkeIntersil
93,964 kr
Each (In a Tube of 95)
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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-artikelnummer 146-2380
Tillv. art.nrX9241AYVIZ
VarumärkeIntersil
117,571 kr
Each (In a Tube of 75)
Enheter
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-artikelnummer 703-7927
Tillv. art.nrMCP4362-103E/ST
VarumärkeMicrochip
18,34 kr
Each
Enheter
Serial-SPI 10kΩ 257 Linear Non-Volatile 1 Surface Mount TSSOP 14 Single 2.7 to 5.5 V - 5.1 x 4.5 x 1.05mm 1.05mm
RS-artikelnummer 921-5343
Tillv. art.nrX9C104SZ
60,305 kr
Each (In a Pack of 2)
Enheter
Serial-3 Wire 100kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
RS-artikelnummer 165-3383
Tillv. art.nrMCP4018T-104E/LT
VarumärkeMicrochip
3,516 kr
Each (On a Reel of 3000)
Enheter
Serial-I2C 100kΩ 128 Linear Volatile 1 Surface Mount SC-70 6 Single 1.8 to 5.5 V - 2 x 1.25 x 1mm 1mm
RS-artikelnummer 183-2115
Tillv. art.nrAD5260BRUZ200
VarumärkeAnalog Devices
42,55 kr
Each (In a Pack of 2)
Enheter
Serial-3 Wire 200kΩ 256 Linear - 1 Surface Mount TSSOP 14 Dual, Single 5 to 15 V ±5.5V 5.1 x 4.5 x 1.05mm 1.05mm
RS-artikelnummer 823-4337
Tillv. art.nrMCP4132-104E/MS
VarumärkeMicrochip
3,575 kr
Each (In a Pack of 10)
Enheter
Serial-SPI 100kΩ 129 - Volatile 1 Surface Mount MSOP 8 Single 1.8 to 5.5 V - 3 x 3 x 0.95mm 0.95mm
RS-artikelnummer 189-8502
Tillv. art.nrDS1804-100+
VarumärkeMaxim Integrated
29,176 kr
Each (In a Pack of 5)
Enheter
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-artikelnummer 403-733
Tillv. art.nrMCP42010-E/SL
VarumärkeMicrochip
21,67 kr
Each (In a Pack of 5)
Enheter
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-artikelnummer 145-8986
Tillv. art.nrMCP4011-502E/SN
VarumärkeMicrochip
3,516 kr
Each (In a Tube of 100)
Enheter
Serial-2 Wire 5kΩ 64 - Volatile - Surface Mount SOIC 8 Single 2.5 V, 3.3 V, 5 V - 4.9 x 3.9 x 1.25mm 1.25mm
RS-artikelnummer 177-6853
Tillv. art.nrDS18030-010+
VarumärkeMaxim Integrated
36,774 kr
Each (In a Tube of 25)
Enheter
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-artikelnummer 823-3542
Tillv. art.nrMCP4141-103E/MS
VarumärkeMicrochip
7,305 kr
Each (In a Pack of 10)
Enheter
SPI 10kΩ 129 - Non-Volatile 1 Surface Mount MSOP 8 Single 2.7 to 5.5 V - 3 x 3 x 0.95mm 0.95mm
RS-artikelnummer 759-0718
Tillv. art.nrAD5245BRJZ100-R2
VarumärkeAnalog Devices
25,38 kr
Each
Enheter
Serial-3 Wire 100kΩ 256 Linear Volatile - Surface Mount SOT-23 8 Single 2.7 to 5.5 V - 2.9 x 1.6 x 1.3mm 1.3mm
RS-artikelnummer 190-5342
Tillv. art.nrMAX5468EUT+T
VarumärkeMaxim Integrated
15,10 kr
Each (In a Pack of 10)
Enheter
- 10kΩ 32 Linear - 1 Surface Mount SOT-23 6 Single 2.7 to 5.5 V - 3 x 1.75 x 1.3mm 1.3mm
RS-artikelnummer 189-7167
Tillv. art.nrMAX5494ETE+
VarumärkeMaxim Integrated
59,185 kr
Each (In a Tube of 60)
Enheter
Serial-SPI 10kΩ 1024 Linear Non-Volatile 1 Surface Mount TQFN 16 Dual 2.7 to 5.25 V ±2.5V 5.1 x 5.1 x 0.75mm 0.75mm
RS-artikelnummer 190-5226
Tillv. art.nrDS1803E-010+
VarumärkeMaxim Integrated
49,055 kr
Each (In a Pack of 2)
Enheter
- 10kΩ 256 Linear Volatile 2 Surface Mount TSSOP 14 Single 2.7 to 5.5 V - 5.1 x 4.5 x 0.95mm 0.95mm
RS-artikelnummer 170-8191
Tillv. art.nrX9C103SIZ
VarumärkeIntersil
45,772 kr
Each (In a Tube of 100)
Enheter
Serial-3 Wire 10kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm