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. 796-8809
FabrikantnummerAD5142ABRUZ100
FabrikantAnalog Devices
3,665 €
Each (In a Pack of 2)
Aantal stuks
Serial-I2C 100kΩ 256 Linear Non-Volatile 2 Surface Mount TSSOP 16 Dual, Single 2.3 → 5.5 V ±2.25 → ±2.75V 5.1 x 4.5 x 1.05mm 1.05mm
RS-stocknr. 796-8824
FabrikantnummerAD5144ABRUZ100
FabrikantAnalog Devices
6,35 €
Each
Aantal stuks
Serial-I2C 100kΩ 256 Linear Non-Volatile 4 Surface Mount TSSOP 20 Dual, Single 2.3 → 5.5 V ±2.25 → ±2.75V 6.6 x 4.5 x 1.05mm 1.05mm
RS-stocknr. 819-5658
FabrikantnummerMCP4331T-103E/ML
FabrikantMicrochip
0,915 €
Each (On a Reel of 3300)
Aantal stuks
SPI 12kΩ 129 Linear Volatile 4 Surface Mount QFN 20 Single 1.8 → 5.5 V - 4 x 4 x 0.95mm 0.95mm
RS-stocknr. 165-3387
FabrikantnummerMCP4022T-103E/CH
FabrikantMicrochip
0,402 €
Each (On a Reel of 3000)
Aantal stuks
Serial-2 Wire 10kΩ 64 Linear Non-Volatile 1 Surface Mount SOT-23 6 Single 1.8 → 5.5 V - 3.1 x 1.75 x 1.3mm 1.3mm
RS-stocknr. 190-5304
FabrikantnummerDS1845E-010+
FabrikantMaxim Integrated
3,195 €
Each (In a Pack of 2)
Aantal stuks
- 10kΩ 100 Linear Non-Volatile 2 Surface Mount TSSOP 14 Single 2.7 → 5.5 V - 5.1 x 4.5 x 0.95mm 0.95mm
RS-stocknr. 796-8811
FabrikantnummerAD5142BRUZ100
FabrikantAnalog Devices
3,715 €
Each (In a Pack of 2)
Aantal stuks
Serial-SPI 100kΩ 256 Linear Non-Volatile 2 Surface Mount TSSOP 16 Dual, Single 2.3 → 5.5 V ±2.25 → ±2.75V 5.1 x 4.5 x 1.05mm 1.05mm
RS-stocknr. 921-5844
FabrikantnummerX9241AUSIZ
9,98 €
Each
Aantal stuks
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-stocknr. 819-5724
FabrikantnummerMCP4341T-503E/ST
FabrikantMicrochip
0,951 €
Each (On a Reel of 2500)
Aantal stuks
SPI 60kΩ 129 Linear Non-Volatile 4 Surface Mount TSSOP 20 Single 2.7 → 5.5 V - 6.6 x 4.5 x 1.05mm 1.05mm
RS-stocknr. 819-5660
FabrikantnummerMCP4331T-104E/ML
FabrikantMicrochip
0,915 €
Each (On a Reel of 3300)
Aantal stuks
SPI 120kΩ 129 Linear Volatile 4 Surface Mount QFN 20 Single 1.8 → 5.5 V - 4 x 4 x 0.95mm 0.95mm
RS-stocknr. 538-7762
FabrikantnummerAD5242BRZ1M
FabrikantAnalog Devices
2,93 €
Each
Aantal stuks
Serial-2 Wire, Serial-I2C 1000kΩ 256 - Volatile 2 Surface Mount SOIC 16 Dual, Single 3 V, 5 V ±2.5V 10 x 4 x 1.5mm 1.5mm
RS-stocknr. 806-5311
FabrikantnummerAD5272BRMZ-20
FabrikantAnalog Devices
3,815 €
Each (In a Pack of 2)
Aantal stuks
Serial-3 Wire, Serial-I2C 20kΩ 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. 183-1874
FabrikantnummerAD8402ARUZ1
FabrikantAnalog Devices
4,235 €
Each (In a Pack of 2)
Aantal stuks
- 1kΩ 256 Linear - 1 Surface Mount TSSOP 14 Single 2.7 → 5.5 V - 5.1 x 4.5 x 1.05mm 1.05mm
RS-stocknr. 165-3389
FabrikantnummerMCP4022T-502E/CH
FabrikantMicrochip
0,402 €
Each (On a Reel of 3000)
Aantal stuks
Serial-2 Wire 5kΩ 64 Linear Non-Volatile 1 Surface Mount SOT-23 5 Single 1.8 → 5.5 V - 3.1 x 1.75 x 1.3mm 1.3mm
RS-stocknr. 821-3024
FabrikantnummerCAT5114LI-00-G
FabrikantON Semiconductor
1,988 €
Each (In a Pack of 5)
Aantal stuks
Up/Down 100kΩ 32 Linear Non-Volatile 1 Through Hole PDIP 8 Single 2.5 → 6 V - 10.16 x 7.11 x 4.95mm 4.95mm
RS-stocknr. 912-6564
FabrikantnummerAD5243BRMZ50
FabrikantAnalog Devices
1,286 €
Each (In a Tube of 50)
Aantal stuks
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
RS-stocknr. 190-5249
FabrikantnummerDS1804Z-100+
FabrikantMaxim Integrated
2,714 €
Each (In a Pack of 5)
Aantal stuks
Up/Down 100kΩ 100 Linear Non-Volatile 1 Surface Mount SO 8 Single 2.7 → 5.5 V - 5 x 4 x 1.5mm 1.5mm
RS-stocknr. 819-5702
FabrikantnummerMCP4341T-103E/ST
FabrikantMicrochip
0,951 €
Each (On a Reel of 2500)
Aantal stuks
SPI 12kΩ 129 Linear Non-Volatile 4 Surface Mount TSSOP 20 Single 2.7 → 5.5 V - 6.6 x 4.5 x 1.05mm 1.05mm
RS-stocknr. 758-9604
FabrikantnummerAD5293BRUZ-50
FabrikantAnalog Devices
5,52 €
Each
Aantal stuks
Serial-SPI 50kΩ 1024 Linear Volatile - Surface Mount TSSOP 14 Dual, Single 9 → 33 V ±9 → ±16.5V 5.1 x 4.5 x 1.2mm 1.2mm
RS-stocknr. 819-5755
FabrikantnummerMCP4351T-103E/ML
FabrikantMicrochip
0,915 €
Each (On a Reel of 3300)
Aantal stuks
SPI 12kΩ 257 Linear Volatile 4 Surface Mount QFN 20 Single 1.8 → 5.5 V - 4 x 4 x 0.95mm 0.95mm
RS-stocknr. 709-5718
FabrikantnummerAD5206BRUZ10
FabrikantAnalog Devices
4,77 €
Each
Aantal stuks
Serial-3 Wire, Serial-SPI 10kΩ 256 - Volatile 6 Surface Mount TSSOP 24 Dual, Single 3 V, 5 V ±2.5V 7.8 x 4.4 x 1.05mm 1.05mm
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