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. 158-0471
FabrikantnummerAD5161BRMZ10
FabrikantAnalog Devices
1,337 €
Each (In a Tube of 50)
Aantal stuks
Serial-2 Wire, Serial-3 Wire, Serial-I2C, Serial-SPI 10kΩ 256 - Volatile 1 Surface Mount MSOP 10 Single 3 V, 5 V - 3 x 3 x 0.85mm 0.85mm
RS-stocknr. 709-5796
FabrikantnummerAD5258BRMZ1
FabrikantAnalog Devices
1,498 €
Each (In a Pack of 5)
Aantal stuks
Serial-I2C 1kΩ 64 - Non-Volatile 1 Surface Mount MSOP 10 Single 3 V, 5 V - 3 x 3 x 0.85mm 0.85mm
RS-stocknr. 724-0609
FabrikantnummerMCP4012T-502E/CH
FabrikantMicrochip
0,464 €
Each (In a Pack of 5)
Aantal stuks
Serial-2 Wire 5kΩ 64 Linear 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. 103-9571
FabrikantnummerDS1804U-010+
FabrikantMaxim
2,048 €
Each (In a Tube of 50)
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. 703-7927
FabrikantnummerMCP4362-103E/ST
FabrikantMicrochip
1,73 €
Each
Aantal stuks
Serial-SPI 10kΩ 257 Linear Non-Volatile 1 Surface Mount TSSOP 14 Single 2.7 → 5.5 V - 5.1 x 4.5 x 1.05mm 1.05mm
RS-stocknr. 179-5066
FabrikantnummerAUIR3315STRL
FabrikantInfineon
1,596 €
Each (On a Reel of 800)
Aantal stuks
Serial-2 Wire - 256 - - - Surface Mount D2-Pak 5 Single 32 (Maximum) V - 10.67 x 9.65 x 4.57mm 4.57mm
RS-stocknr. 799-7737
FabrikantnummerMAX5479EUD+
FabrikantMaxim
3,17 €
Each
Aantal stuks
Serial-2 Wire 100kΩ 256 Linear Non-Volatile 2 Surface Mount TSSOP 14 Single 2.7 → 5.25 V - 5.1 x 4.5 x 0.95mm 0.95mm
RS-stocknr. 758-9594
FabrikantnummerAD5220BRMZ100
FabrikantAnalog Devices
2,75 €
Each
Aantal stuks
Serial-3 Wire 100kΩ 128 Linear Volatile - Surface Mount MSOP 8 Single 2.7 → 5.5 V - 3.2 x 3.2 x 1.1mm 1.1mm
Nieuw
RS-stocknr. 189-8287
FabrikantnummerDS1803Z-010+
FabrikantMaxim
4,18 €
Each (In a Pack of 2)
Aantal stuks
Serial-2 Wire 10kΩ 256 Linear Volatile 2 Surface Mount SOIC 16 Single 5 V - 10 x 4 x 1.5mm 1.5mm
Nieuw
RS-stocknr. 190-5284
FabrikantnummerDS1809Z-010+
FabrikantMaxim
2,14 €
Each (In a Pack of 5)
Aantal stuks
Contact/Closure 10kΩ 64 Linear Non-Volatile 1 Surface Mount SO 8 Single 4.5 → 5.5 V - 5 x 4 x 1.5mm 1.5mm
Nieuw
RS-stocknr. 189-7161
FabrikantnummerMAX5403EUB+
FabrikantMaxim
2,812 €
Each (In a Tube of 50)
Aantal stuks
Serial-3 Wire, Serial-SPI 10kΩ 256 Linear Volatile 2 Surface Mount μMAX 10 Single 2.7 → 5.5 V - 3.05 x 3.05 x 0.95mm 0.95mm
RS-stocknr. 796-8821
FabrikantnummerAD5144BRUZ100
FabrikantAnalog Devices
6,19 €
Each
Aantal stuks
Serial-SPI 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. 796-8824
FabrikantnummerAD5144ABRUZ100
FabrikantAnalog Devices
5,84 €
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. 823-7907
FabrikantnummerMCP4011T-202E/MC
FabrikantMicrochip
0,441 €
Each (In a Pack of 20)
Aantal stuks
Serial-2 Wire 2.1kΩ 64 - Volatile 1 Surface Mount DFN 8 Single 1.8 → 5.5 V - 3 x 2 x 0.95mm 0.95mm
RS-stocknr. 497-2656
FabrikantnummerAD5241BRZ10
FabrikantAnalog Devices
2,36 €
Each (In a Pack of 5)
Aantal stuks
Serial-2 Wire, Serial-I2C 10kΩ 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. 146-1116
FabrikantnummerDS1804-050+
FabrikantMaxim
2,016 €
Each (In a Tube of 50)
Aantal stuks
Increment/Decrement 50kΩ 100 Linear Non-Volatile 1 Through Hole PDIP 8 Single 3 V, 5 V - 9.91 x 7.87 x 4.45mm 4.45mm
RS-stocknr. 497-2678
FabrikantnummerAD5241BRZ1M
FabrikantAnalog Devices
2,394 €
Each (In a Pack of 5)
Aantal stuks
Serial-2 Wire, Serial-I2C 1000kΩ 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. 738-6130
FabrikantnummerMCP4252-103E/UN
FabrikantMicrochip
0,815 €
Each (In a Pack of 2)
Aantal stuks
Serial-SPI 10kΩ 257 Linear Volatile 2 Surface Mount MSOP 10 Single 1.8 → 5.5 V - 3 x 3 x 0.95mm 0.95mm
RS-stocknr. 158-2564
FabrikantnummerAD5282BRUZ50
FabrikantAnalog Devices
3,536 €
Each (In a Tube of 96)
Aantal stuks
Serial-3 Wire, Serial-I2C 50kΩ 256 - Volatile 2 Surface Mount TSSOP 16 Dual, Single 15 V ±5V 5 x 4.4 x 1.05mm 1.05mm
RS-stocknr. 819-5660
FabrikantnummerMCP4331T-104E/ML
FabrikantMicrochip
0,922 €
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
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