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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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. 709-5724
FabrikantnummerAD5206BRZ10
FabrikantAnalog Devices
4,73 €
Each
Aantal stuks
Serial-3 Wire, Serial-SPI 10kΩ 256 - Volatile 6 Surface Mount SOIC W 24 Dual, Single 3 V, 5 V ±2.5V 15.6 x 7.6 x 2.35mm 2.35mm
RS-stocknr. 523-6816
FabrikantnummerAD5220BNZ10
FabrikantAnalog Devices
2,87 €
Each
Aantal stuks
Serial-3 Wire 10kΩ 128 - Volatile 1 Through Hole PDIP 8 Single 3 V, 5 V - 9.27 x 7.24 x 3.43mm 3.43mm
RS-stocknr. 889-5156
FabrikantnummerMCP4551-103E/MS
FabrikantMicrochip
0,575 €
Each (In a Tube of 100)
Aantal stuks
Serial-2 Wire, Serial-I2C 10kΩ 256 - Volatile 1 Surface Mount MSOP 8 Single 2.5 V, 3.3 V, 5 V - 3 x 3 x 0.85mm 0.85mm
RS-stocknr. 709-5664
FabrikantnummerAD5161BRMZ50
FabrikantAnalog Devices
1,572 €
Each (In a Pack of 5)
Aantal stuks
Serial-2 Wire, Serial-3 Wire, Serial-I2C, Serial-SPI 50kΩ 256 - Volatile 1 Surface Mount MSOP 10 Single 3 V, 5 V - 3 x 3 x 0.85mm 0.85mm
RS-stocknr. 523-6838
FabrikantnummerAD5220BNZ100
FabrikantAnalog Devices
3,02 €
Each
Aantal stuks
Serial-3 Wire 100kΩ 128 - Volatile 1 Through Hole PDIP 8 Single 3 V, 5 V - 9.27 x 7.24 x 3.43mm 3.43mm
RS-stocknr. 687-8446
FabrikantnummerMCP4551-103E/MS
FabrikantMicrochip
0,77 €
Each
Aantal stuks
Serial-2 Wire, Serial-I2C 10kΩ 256 - Volatile 1 Surface Mount MSOP 8 Single 2.5 V, 3.3 V, 5 V - 3 x 3 x 0.85mm 0.85mm
RS-stocknr. 723-9930
FabrikantnummerMCP4151-103E/P
FabrikantMicrochip
0,76 €
Each (In a Pack of 2)
Aantal stuks
Serial-SPI 10kΩ 257 Linear Volatile 1 Through Hole PDIP 8 Single 1.8 to 5.5 V - 0.4 x 0.28 x 0.195in 4.95mm
RS-stocknr. 669-6367
FabrikantnummerMCP42010-I/P
FabrikantMicrochip
1,80 €
Each (In a Pack of 2)
Aantal stuks
Serial-SPI 10kΩ 256 Linear - 2 Through Hole PDIP 14 Single 3.3 V, 5 V - 19.05 x 6.35 x 3.3mm 3.3mm
RS-stocknr. 165-4163
FabrikantnummerMCP45HV51-502E/ST
FabrikantMicrochip
1,069 €
Each (In a Tube of 96)
Aantal stuks
Serial-I2C 5kΩ 256 Linear Volatile 1 Surface Mount TSSOP 14 Single 1.8 → 5.5 (Digital) V, 10 → 36 (Analogue) V - 5.1 x 4.5 x 1.05mm 1.05mm
RS-stocknr. 146-0134
FabrikantnummerMCP42010-I/P
FabrikantMicrochip
1,51 €
Each (In a Tube of 30)
Aantal stuks
Serial-SPI 10kΩ 256 Linear - 2 Through Hole PDIP 14 Single 3.3 V, 5 V - 19.05 x 6.35 x 3.3mm 3.3mm
RS-stocknr. 497-2662
FabrikantnummerAD5241BRZ100
FabrikantAnalog Devices
2,256 €
Each (In a Pack of 5)
Aantal stuks
Serial-2 Wire, Serial-I2C 100kΩ 256 - Volatile 1 Surface Mount SOIC 14 Dual, Single 3 V, 5 V ±2.5V 8.75 x 4 x 1.5mm 1.5mm
RS-stocknr. 159-7405
FabrikantnummerMCP4151-103E/P
FabrikantMicrochip
0,635 €
Each (In a Tube of 60)
Aantal stuks
Serial-SPI 10kΩ 257 Linear Volatile 1 Through Hole PDIP 8 Single 1.8 → 5.5 V - 0.4 x 0.28 x 0.195in 4.95mm
RS-stocknr. 829-0545
FabrikantnummerMCP45HV51-502E/ST
FabrikantMicrochip
1,276 €
Each (In a Pack of 5)
Aantal stuks
Serial-I2C 5kΩ 256 Linear Volatile 1 Surface Mount TSSOP 14 Single 1.8 → 5.5 (Digital) V, 10 → 36 (Analogue) V - 5.1 x 4.5 x 1.05mm 1.05mm
RS-stocknr. 165-4162
FabrikantnummerMCP45HV51-104E/ST
FabrikantMicrochip
1,069 €
Each (In a Tube of 96)
Aantal stuks
Serial-I2C 100kΩ 256 Linear Volatile 1 Surface Mount TSSOP 14 Single 1.8 → 5.5 (Digital) V, 10 → 36 (Analogue) V - 5.1 x 4.5 x 1.05mm 1.05mm
RS-stocknr. 145-7199
FabrikantnummerAD5171BRJZ10-R2
FabrikantAnalog Devices
1,806 €
Each (On a Reel of 250)
Aantal stuks
Serial-2 Wire 10kΩ 64 Linear Non-Volatile 1 Surface Mount SOT-23 8 Single 2.7 → 5.5 V - 2.9 x 1.6 x 1.3mm 1.3mm
RS-stocknr. 709-7121
FabrikantnummerAD8402ARZ1
FabrikantAnalog Devices
3,98 €
Each
Aantal stuks
Serial-3 Wire, Serial-SPI 1kΩ 256 Linear Volatile 2 Surface Mount SOIC 14 Single 3 V, 5 V - 8.75 x 4 x 1.5mm 1.5mm
RS-stocknr. 806-5317
FabrikantnummerAD5272BRMZ-100
FabrikantAnalog Devices
3,665 €
Each (In a Pack of 2)
Aantal stuks
Serial-3 Wire, Serial-I2C 100kΩ 1024 - Non-Volatile 1 Surface Mount MSOP 10 Dual, Single 2.7 → 5.5 V ±2.5 → ±2.75V 3.1 x 3.1 x 0.95mm 0.95mm
RS-stocknr. 144-9093
FabrikantnummerMCP41010-E/P
FabrikantMicrochip
1,099 €
Each (In a Tube of 60)
Aantal stuks
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-stocknr. 403-676
FabrikantnummerMCP41010-E/P
FabrikantMicrochip
1,31 €
Each (In a Pack of 5)
Aantal stuks
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-stocknr. 538-6028
FabrikantnummerAD5263BRUZ50
FabrikantAnalog Devices
5,89 €
Each
Aantal stuks
Serial-2 Wire, Serial-3 Wire, Serial-I2C, Serial-SPI 50kΩ 256 Linear Volatile 4 Surface Mount TSSOP 24 Dual, Single 5 V ±5V 7.8 x 4.4 x 1.05mm 1.05mm