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. 497-2123
FabrikantnummerAD5207BRUZ50
FabrikantAnalog Devices
2,436 €
Each (In a Pack of 5)
Aantal stuks
Serial-2 Wire, Serial-I2C 50kΩ 256 Linear Volatile 2 Surface Mount TSSOP 14 Dual, Single 5 V ±2.5V 5 x 4.4 x 1mm 1mm
RS-stocknr. 165-4164
FabrikantnummerMCP45HV51-103E/ST
FabrikantMicrochip
1,128 €
Each (In a Tube of 96)
Aantal stuks
Serial-I2C 10kΩ 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
Nieuw
RS-stocknr. 196-9013
FabrikantnummerX9C102SIZ
4,175 €
Each (In a Tube of 100)
Aantal stuks
- - 32 - - - - - 8 - - - - -
RS-stocknr. 159-9313
FabrikantnummerAD5122ABRUZ10
FabrikantAnalog Devices
2,911 €
Each (In a Tube of 96)
Aantal stuks
Serial-I2C 10kΩ 128 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. 497-1209
FabrikantnummerAD5262BRUZ50
FabrikantAnalog Devices
4,61 €
Each
Aantal stuks
Serial-2 Wire, Serial-I2C 50kΩ 256 Linear Volatile 2 Surface Mount TSSOP 16 Dual, Single 15 V ±5V 5 x 4.4 x 1.05mm 1.05mm
RS-stocknr. 165-3389
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. 190-5297
FabrikantnummerMAX5401EKA+T
FabrikantMaxim Integrated
1,89 €
Each (In a Pack of 5)
Aantal stuks
- 100kΩ 256 Linear Volatile 1 Surface Mount SOT-23 8 Single 2.7 → 5.5 V - 3 x 1.75 x 1.3mm 1.3mm
RS-stocknr. 819-5774
FabrikantnummerMCP4351T-502E/ST
FabrikantMicrochip
0,915 €
Each (On a Reel of 2500)
Aantal stuks
SPI 6kΩ 257 Linear Volatile 4 Surface Mount TSSOP 20 Single 1.8 → 5.5 V - 6.6 x 4.5 x 1.05mm 1.05mm
RS-stocknr. 177-0549
FabrikantnummerMCP4261-502E/ST
FabrikantMicrochip
0,649 €
Each (In a Pack of 10)
Aantal stuks
SPI 100kΩ 129 - Non-Volatile 2 Surface Mount TSSOP 14 Single Maximum of 5.5 V - 5.1 x 4.5 x 1.05mm 1.05mm
RS-stocknr. 159-9336
FabrikantnummerAD5116BCPZ10-500R7
FabrikantAnalog Devices
0,938 €
Each (On a Reel of 500)
Aantal stuks
Push Button 10kΩ 64 Linear Non-Volatile 1 Surface Mount LFCSP 8 Single 2.3 → 5.5 V - 2 x 2 x 0.55mm 0.55mm
RS-stocknr. 709-5793
FabrikantnummerAD5258BRMZ50
FabrikantAnalog Devices
1,498 €
Each (In a Pack of 5)
Aantal stuks
Serial-I2C 50kΩ 64 - Non-Volatile 1 Surface Mount MSOP 10 Single 3 V, 5 V - 3 x 3 x 0.85mm 0.85mm
RS-stocknr. 192-2221
FabrikantnummerMAX5478EUD+
FabrikantMaxim Integrated
2,535 €
Each (In a Tube of 96)
Aantal stuks
Serial-I2C 50kΩ 256 Linear Non-Volatile 1 Surface Mount TSSOP 14 Dual 2.7 → 5.25 V - 5.1 x 4.5 x 0.95mm 0.95mm
RS-stocknr. 191-6956
FabrikantnummerMAX5479ETE+
FabrikantMaxim Integrated
2,932 €
Each (In a Pack of 5)
Aantal stuks
I2C 100kΩ 256 Linear Non-Volatile 2 Surface Mount TQFN-EP 16 Single 2.7 → 5.25 V - 3 x 3 x 0.75mm 0.75mm
RS-stocknr. 158-2558
FabrikantnummerAD5204BRUZ10
FabrikantAnalog Devices
2,857 €
Each (In a Tube of 62)
Aantal stuks
Serial-3 Wire, Serial-SPI 10kΩ 256 - Volatile 4 Surface Mount TSSOP 24 Dual, Single 3 V, 5 V ±2.5V 7.8 x 4.4 x 1.05mm 1.05mm
RS-stocknr. 819-5718
FabrikantnummerMCP4341T-502E/ML
FabrikantMicrochip
0,951 €
Each (On a Reel of 3300)
Aantal stuks
SPI 6kΩ 129 Linear Non-Volatile 4 Surface Mount QFN 20 Single 2.7 → 5.5 V - 4 x 4 x 0.95mm 0.95mm
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. 709-5746
FabrikantnummerAD5222BRUZ10
FabrikantAnalog Devices
2,554 €
Each (In a Pack of 5)
Aantal stuks
Increment/Decrement 10kΩ 128 - Volatile 2 Surface Mount TSSOP 14 Dual, Single 3 V, 5 V ±2.5V 5 x 4.4 x 1mm 1mm
RS-stocknr. 183-1943
FabrikantnummerAD5170BRMZ2.5
FabrikantAnalog Devices
2,80 €
Each (In a Pack of 5)
Aantal stuks
I2C, Serial-2 Wire 2.5kΩ 256 Linear Volatile 1 Surface Mount MSOP 10 Single 2.7 → 5.5 V - 3.1 x 3.1 x 0.95mm 0.95mm
RS-stocknr. 160-7974
FabrikantnummerAD5246BKSZ10-RL7
FabrikantAnalog Devices
0,608 €
Each (On a Reel of 3000)
Aantal stuks
Serial-3 Wire, Serial-I2C 10kΩ 128 - Non-Volatile 1 Surface Mount SC-70 6 Single 2.7 → 5.5 V - 2.2 x 1.35 x 1mm 1mm
RS-stocknr. 192-1637
FabrikantnummerDS1803Z-100+
FabrikantMaxim Integrated
4,305 €
Each (In a Pack of 2)
Aantal stuks
Serial-2 Wire 100kΩ 256 Linear Volatile 2 Surface Mount SOIC 16 Single 2.7 → 5.5 V - 10 x 4 x 1.5mm 1.5mm
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