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

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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
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RS-artikelnummer 196-9004
Tillv. art.nrISL95810UIU8Z-T
24,072 kr
Each (In a Pack of 5)
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- - - - - - - - 8 - - - - -
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RS-artikelnummer 196-9014
Tillv. art.nrX9C102SIZ
61,16 kr
Each (In a Pack of 2)
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- - 32 - - - - - 8 - - - - -
RS-artikelnummer 921-5368
Tillv. art.nrX9C103PZ
49,475 kr
Each (In a Pack of 2)
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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-artikelnummer 921-5352
Tillv. art.nrX9313WSZ
38,36 kr
Each (In a Pack of 2)
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Serial-3 Wire 10kΩ 32 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
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RS-artikelnummer 196-9007
Tillv. art.nrX9119TV14IZ-2.7
102,139 kr
Each (In a Tube of 95)
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RS-artikelnummer 196-9012
Tillv. art.nrX9C102PIZ
61,06 kr
Each (In a Pack of 2)
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- - 32 - - - - - 8 - - - - -
RS-artikelnummer 921-5680
Tillv. art.nrX9C102SZ
55,32 kr
Each (In a Pack of 2)
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Serial-3 Wire 1kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
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RS-artikelnummer 193-1543
Tillv. art.nrISL90728WIE627Z-T7A
15,096 kr
Each (In a Pack of 5)
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Serial-I2C 10kΩ 128 - Volatile 1 Surface Mount SC-70 6 Single 2.7 → 5.5 V - 2.15 x 1.35 x 1mm 1mm
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RS-artikelnummer 193-1542
Tillv. art.nrISL90728WIE627Z-T7A
9,815 kr
Each (On a Reel of 250)
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Serial-I2C 10kΩ 128 - Volatile 1 Surface Mount SC-70 6 Single 2.7 → 5.5 V - 2.15 x 1.35 x 1mm 1mm
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RS-artikelnummer 196-9011
Tillv. art.nrX9C102PIZ
52,099 kr
Each (In a Tube of 50)
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- - 32 - - - - - 8 - - - - -
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RS-artikelnummer 196-9008
Tillv. art.nrX9119TV14IZ-2.7
117,05 kr
Each
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RS-artikelnummer 196-9016
Tillv. art.nrX9C104SIZ
60,28 kr
Each (In a Pack of 2)
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- - 32 - - - - - 8 - - - - -
RS-artikelnummer 921-5343
Tillv. art.nrX9C104SZ
50,355 kr
Each (In a Pack of 2)
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Serial-3 Wire 100kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
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RS-artikelnummer 196-9013
Tillv. art.nrX9C102SIZ
43,169 kr
Each (In a Tube of 100)
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- - 32 - - - - - 8 - - - - -
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RS-artikelnummer 196-9005
Tillv. art.nrISL95810WIU8Z
20,268 kr
Each (In a Tube of 80)
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- - - - - - - - 8 - - - - -
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RS-artikelnummer 193-1541
Tillv. art.nrISL90727WIE627Z-T7A
15,096 kr
Each (In a Pack of 5)
Enheter
Serial-I2C 10kΩ 128 - Volatile 1 Surface Mount SC-70 6 Single 2.7 → 5.5 V - 2.15 x 1.35 x 1mm 1mm
RS-artikelnummer 146-2404
Tillv. art.nrX9C503PZ
40,671 kr
Each (In a Tube of 50)
Enheter
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 921-5844
Tillv. art.nrX9241AUSIZ
103,19 kr
Each
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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
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RS-artikelnummer 196-9003
Tillv. art.nrISL95810UIU8Z-T
10,947 kr
Each (On a Reel of 2500)
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RS-artikelnummer 196-8999
Tillv. art.nrISL90727WIE627Z-TK
11,477 kr
Each (In a Pack of 10)
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