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 196-9010
Tillv. art.nrX9511WSIZ
46,12 kr
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- - 32 - - - - - 8 - - - - -
RS-artikelnummer 538-4858
Tillv. art.nrAD5254BRUZ100
VarumärkeAnalog Devices
53,64 kr
Each
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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-artikelnummer 165-2066
Tillv. art.nrMCP42100-I/ST
VarumärkeMicrochip
16,098 kr
Each (In a Tube of 96)
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SPI 100kΩ 256 Linear - 2 Surface Mount TSSOP 14 Single 2.7 to 5.5 V - 5.1 x 4.5 x 0.95mm 0.95mm
RS-artikelnummer 889-5411
Tillv. art.nrMCP42010-E/SL
VarumärkeMicrochip
17,519 kr
Each (In a Tube of 57)
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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 523-7386
Tillv. art.nrAD8403ARZ10
VarumärkeAnalog Devices
66,86 kr
Each
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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-artikelnummer 183-2045
Tillv. art.nrAD5243BRMZ100
VarumärkeAnalog Devices
23,162 kr
Each (In a Pack of 5)
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I2C, Serial-2 Wire 100kΩ 256 Linear Non-Volatile 2 Surface Mount MSOP 10 Single 2.7 to 5.5 V - 3.1 x 3.1 x 0.95mm 0.95mm
RS-artikelnummer 144-9093
Tillv. art.nrMCP41010-E/P
VarumärkeMicrochip
11,718 kr
Each (In a Tube of 60)
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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-artikelnummer 170-8222
Tillv. art.nrX9C102PZ
VarumärkeIntersil
44,369 kr
Each (In a Tube of 50)
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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-artikelnummer 165-1962
Tillv. art.nrMCP4251-103E/ML
VarumärkeMicrochip
7,244 kr
Each (In a Tube of 91)
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SPI 10kΩ 257 - Volatile 2 Surface Mount QFN 16 Single 1.8 → 5.5 V - 4 x 4 x 0.95mm 0.95mm
RS-artikelnummer 165-2112
Tillv. art.nrMCP41HV51-103E/ST
VarumärkeMicrochip
11,399 kr
Each (In a Tube of 96)
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Serial-SPI 10kΩ 256 - Volatile 1 Surface Mount TSSOP 14 Dual, Single 36 V ±18V 5.1 x 4.5 x 1.05mm 1.05mm
RS-artikelnummer 146-2380
Tillv. art.nrX9241AYVIZ
VarumärkeIntersil
102,235 kr
Each (In a Tube of 75)
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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 921-5548
Tillv. art.nrX9C103SIZ
58,49 kr
Each (In a Pack of 2)
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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-artikelnummer 191-3377
Tillv. art.nrMAX5455EUD+
VarumärkeMaxim Integrated
28,196 kr
Each (In a Pack of 5)
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Up/Down 100kΩ 256 Linear - 2 Surface Mount TSSOP 14 Single 2.7 to 5.5 V - 5.1 x 4.5 x 0.95mm 0.95mm
RS-artikelnummer 412-692
Tillv. art.nrAD8400ARZ1
VarumärkeAnalog Devices
29,518 kr
Each (In a Pack of 5)
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Serial-3 Wire, Serial-SPI 1kΩ 256 Linear Volatile 1 Surface Mount SOIC 8 Single 3 V, 5 V - 5 x 4 x 1.5mm 1.5mm
RS-artikelnummer 738-6749
Tillv. art.nrMCP4013T-103E/CH
VarumärkeMicrochip
4,798 kr
Each (In a Pack of 5)
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Serial-2 Wire 10kΩ 64 Linear Volatile 1 Surface Mount SOT-23 6 Single 1.8 to 5.5 V - 3.1 x 1.75 x 1.3mm 1.3mm
RS-artikelnummer 189-8475
Tillv. art.nrMAX5436EUB+
VarumärkeMaxim Integrated
61,105 kr
Each (In a Pack of 2)
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Serial-SPI 50kΩ 128 - - 1 Surface Mount μMAX 10 Dual, Single 10 to 30 V ±5 to ±15V 3.05 x 3.05 x 0.95mm 0.95mm
RS-artikelnummer 168-4167
Tillv. art.nrAD5262BRUZ20-RL7
VarumärkeAnalog Devices
27,846 kr
Each (On a Reel of 1000)
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Serial-3 Wire, Serial-SPI 20kΩ 256 Linear Volatile - Surface Mount TSSOP 16 Dual, Single 4.5 to 16.5 V ±4.5 → ±5.5V 5.1 x 4.5 x 1.2mm 1.2mm
RS-artikelnummer 819-7092
Tillv. art.nrAD5247BKSZ10-RL7
VarumärkeAnalog Devices
12,818 kr
Each (In a Pack of 5)
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I2C, Serial-2 Wire 10kΩ 128 - Non-Volatile 1 Surface Mount SC-70 6 Single 2.7 to 5.5 V - 2.2 x 1.35 x 1mm 1mm
RS-artikelnummer 921-5848
Tillv. art.nrX9C102PZ
58,42 kr
Each (In a Pack of 2)
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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-artikelnummer 709-4743
Tillv. art.nrAD5243BRMZ50
VarumärkeAnalog Devices
23,25 kr
Each
Enheter
Serial-3 Wire, Serial-I2C 50kΩ 256 - Volatile 2 Surface Mount MSOP 10 Single 3 V, 5 V - 3 x 3 x 0.85mm 0.85mm