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. 921-5848
FabrikantnummerX9C102PZ
4,615 €
Each (In a Pack of 2)
Aantal stuks
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-stocknr. 809-9301
FabrikantnummerAD5171BRJZ10-R2
FabrikantAnalog Devices
3,052 €
Each (On a Tape of 5)
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
4,20 €
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. 170-8222
FabrikantnummerX9C102PZ
FabrikantIntersil
3,924 €
Each (In a Tube of 50)
Aantal stuks
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-stocknr. 540-2108
FabrikantnummerDS1801+
FabrikantMaxim
5,08 €
Each
Aantal stuks
Serial-3 Wire 45kΩ 64 Log Volatile 2 Through Hole PDIP 14 Single 3 V, 5 V - 19.43 x 7.87 x 4.45mm 4.45mm
RS-stocknr. 709-5783
FabrikantnummerAD5254BRUZ1
FabrikantAnalog Devices
5,29 €
Each
Aantal stuks
Serial-3 Wire, Serial-I2C 1kΩ 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-stocknr. 403-676
FabrikantnummerMCP41010-E/P
FabrikantMicrochip
1,346 €
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. 538-7144
FabrikantnummerAD5262BRUZ200
FabrikantAnalog Devices
4,61 €
Each
Aantal stuks
Serial-2 Wire, Serial-I2C 200kΩ 256 Linear Volatile 2 Surface Mount TSSOP 16 Dual, Single 15 V ±5V 5 x 4.4 x 1.05mm 1.05mm
RS-stocknr. 165-8961
FabrikantnummerDS1801+
FabrikantMaxim
4,603 €
Each (In a Tube of 25)
Aantal stuks
Serial-3 Wire 45kΩ 64 Log Volatile 2 Through Hole PDIP 14 Single 3 V, 5 V - 19.43 x 7.87 x 4.45mm 4.45mm
RS-stocknr. 912-7542
FabrikantnummerAD5263BRUZ50
FabrikantAnalog Devices
4,937 €
Each (In a Tube of 62)
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
RS-stocknr. 819-5626
FabrikantnummerMCP42010-I/SL
FabrikantMicrochip
1,497 €
Each (In a Tube of 57)
Aantal stuks
SPI 12kΩ 256 Linear Volatile 2 Surface Mount SOIC 14 Single 2.7 → 5.5 V - 8.81 x 3.99 x 1.55mm 1.55mm
RS-stocknr. 145-6168
FabrikantnummerAD5262BRUZ200
FabrikantAnalog Devices
3,536 €
Each (In a Tube of 96)
Aantal stuks
Serial-2 Wire, Serial-I2C 200kΩ 256 Linear Volatile 2 Surface Mount TSSOP 16 Dual, Single 15 V ±5V 5 x 4.4 x 1.05mm 1.05mm
RS-stocknr. 412-692
FabrikantnummerAD8400ARZ1
FabrikantAnalog Devices
2,78 €
Each (In a Pack of 5)
Aantal stuks
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-stocknr. 145-7199
FabrikantnummerAD5171BRJZ10-R2
FabrikantAnalog Devices
2,016 €
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. 806-5317
FabrikantnummerAD5272BRMZ-100
FabrikantAnalog Devices
3,87 €
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. 159-7878
FabrikantnummerAD8402ARZ1
FabrikantAnalog Devices
3,223 €
Each (In a Tube of 56)
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. 913-0784
FabrikantnummerAD5254BRUZ1
FabrikantAnalog Devices
4,204 €
Each (In a Tube of 75)
Aantal stuks
Serial-3 Wire, Serial-I2C 1kΩ 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-stocknr. 538-6028
FabrikantnummerAD5263BRUZ50
FabrikantAnalog Devices
6,21 €
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
RS-stocknr. 889-5878
FabrikantnummerMCP41010-I/SN
FabrikantMicrochip
0,911 €
Each (In a Tube of 100)
Aantal stuks
Serial-SPI 10kΩ 256 Linear - 1 Surface Mount SOIC 8 Single 3.3 V, 5 V - 4.9 x 3.9 x 1.25mm 1.25mm
RS-stocknr. 829-0541
FabrikantnummerMCP45HV51-104E/ST
FabrikantMicrochip
1,392 €
Each (In a Pack of 5)
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
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