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. 819-5715
FabrikantnummerMCP4341T-503E/ML
FabrikantMicrochip
€ 0,951
Each (On a Reel of 3300)
Aantal stuks
SPI 60kΩ 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. 190-6078
FabrikantnummerMAX5496ETE+
FabrikantMaxim Integrated
€ 5,241
Each (In a Tube of 60)
Aantal stuks
Serial-3 Wire/ Serial-SPI 50kΩ 1024 Linear Non-Volatile 2 Surface Mount TQFN 16 Dual, Single 2.7 → 5.25 V ±2.5V 5 x 5 x 0.75mm 0.75mm
RS-stocknr. 709-6358
FabrikantnummerAD7376ARUZ10
FabrikantAnalog Devices
€ 7,74
Each
Aantal stuks
Serial-3 Wire, Serial-SPI 10kΩ 128 - Volatile 1 Surface Mount TSSOP 14 Dual, Single 30 V ±15V 5 x 4.4 x 1mm 1mm
RS-stocknr. 732-7450
FabrikantnummerDS1804U-010+
FabrikantMaxim Integrated
€ 2,46
Each
Aantal stuks
Increment 10kΩ 100 Linear Non-Volatile 1 Surface Mount μSOP 8 Single 5 V - 3.1 x 3.1 x 0.95mm 0.95mm
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. 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. 192-2698
FabrikantnummerMAX5478EUD+
FabrikantMaxim Integrated
€ 2,99
Each (In a Pack of 5)
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. 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. 145-7387
FabrikantnummerAD5161BRMZ100
FabrikantAnalog Devices
€ 1,291
Each (In a Tube of 50)
Aantal stuks
Serial-2 Wire, Serial-3 Wire, Serial-I2C, Serial-SPI 100kΩ 256 - Volatile 1 Surface Mount MSOP 10 Single 3 V, 5 V - 3 x 3 x 0.85mm 0.85mm
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. 178-4037
FabrikantnummerMCP4542-503E/MS
FabrikantMicrochip
€ 0,417
Each (In a Tube of 100)
Aantal stuks
Serial-I2C 50kΩ 129 Linear Non-Volatile 1 Surface Mount MSOP 8 Single 1.8 → 5.5 V - 3 x 3 x 0.95mm 0.95mm
RS-stocknr. 190-5342
FabrikantnummerMAX5468EUT+T
FabrikantMaxim Integrated
€ 0,915
Each (In a Pack of 10)
Aantal stuks
- 10kΩ 32 Linear - 1 Surface Mount SOT-23 6 Single 2.7 → 5.5 V - 3 x 1.75 x 1.3mm 1.3mm
RS-stocknr. 538-7374
FabrikantnummerAD5232BRUZ10
FabrikantAnalog Devices
€ 5,39
Each
Aantal stuks
Serial-2 Wire, Serial-I2C 10kΩ 256 Linear, Log Non-Volatile 2 Surface Mount TSSOP 16 Dual, Single 3 V, 5 V ±2.5V 5 x 4.4 x 1.05mm 1.05mm
RS-stocknr. 759-0692
FabrikantnummerAD5200BRMZ10-REEL7
FabrikantAnalog Devices
€ 2,63
Each
Aantal stuks
Serial-3 Wire, Serial-SPI 10kΩ 256 Linear Volatile 1 Surface Mount SOIC 10 Dual, Single 2.7 → 5.5 V ±2.7V 3.15 x 3.15 x 0.97mm 0.97mm
RS-stocknr. 183-1684
FabrikantnummerAD5160BRJZ100-RL7
FabrikantAnalog Devices
€ 0,878
Each (On a Reel of 3000)
Aantal stuks
SPI 100kΩ 256 Linear - 1 Surface Mount SOT-23 8 Single 2.7 → 5.5 V - 3 x 1.7 x 1.3mm 1.3mm
RS-stocknr. 190-6897
FabrikantnummerMAX5496ETE+
FabrikantMaxim Integrated
€ 6,22
Each
Aantal stuks
- - - - - - - - - - - - - -
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
RS-stocknr. 709-5730
FabrikantnummerAD5220BRMZ10
FabrikantAnalog Devices
€ 2,696
Each (In a Pack of 5)
Aantal stuks
Serial-3 Wire 10kΩ 128 - Volatile 1 Surface Mount MSOP 8 Single 3 V, 5 V - 3 x 3 x 0.85mm 0.85mm
RS-stocknr. 538-4858
FabrikantnummerAD5254BRUZ100
FabrikantAnalog Devices
€ 5,28
Each
Aantal stuks
Serial-2 Wire, Serial-I2C 100kΩ 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. 158-5284
FabrikantnummerAD5222BRZ10
FabrikantAnalog Devices
€ 1,843
Each (In a Tube of 56)
Aantal stuks
Increment/Decrement 10kΩ 128 - Volatile 2 Surface Mount SOIC 14 Dual, Single 3 V, 5 V ±2.5V 8.75 x 4 x 1.5mm 1.5mm
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