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. 412-703
FabrikantnummerAD5290YRMZ10
FabrikantAnalog Devices
€ 4,60
Each
Aantal stuks
Serial-3 Wire, Serial-SPI 10kΩ 256 - Volatile 1 Surface Mount MSOP 10 Dual, Single 15 V ±12 V, ±5 V, ±9 V 3 x 3 x 0.85mm 0.85mm
RS-stocknr. 158-0470
FabrikantnummerAD5160BRJZ5-R2
FabrikantAnalog Devices
€ 1,336
Each (On a Reel of 250)
Aantal stuks
Serial-3 Wire, Serial-SPI 5kΩ 256 Linear Volatile 1 Surface Mount SOT-23 8 Single 3 V, 5 V - 2.9 x 1.6 x 1.15mm 1.15mm
RS-stocknr. 697-6855
FabrikantnummerAD5160BRJZ5-R2
FabrikantAnalog Devices
€ 2,244
Each (In a Pack of 5)
Aantal stuks
Serial-3 Wire, Serial-SPI 5kΩ 256 Linear Volatile 1 Surface Mount SOT-23 8 Single 3 V, 5 V - 2.9 x 1.6 x 1.15mm 1.15mm
RS-stocknr. 724-0154
FabrikantnummerMCP4161-502E/SN
FabrikantMicrochip
€ 0,81
Each (In a Pack of 2)
Aantal stuks
Serial-SPI 5kΩ 257 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 1.8 → 5.5 V - 4.9 x 3.9 x 1.25mm 1.25mm
RS-stocknr. 723-9731
FabrikantnummerMCP4251-104E/P
FabrikantMicrochip
€ 0,79
Each (In a Pack of 2)
Aantal stuks
Serial-SPI 100kΩ 257 Linear Volatile 2 Through Hole PDIP 14 Single 1.8 to 5.5 V - 0.4 x 0.28 x 0.195in 4.95mm
RS-stocknr. 806-5320
FabrikantnummerAD5272BRMZ-50
FabrikantAnalog Devices
€ 3,665
Each (In a Pack of 2)
Aantal stuks
Serial-3 Wire, Serial-I2C 50kΩ 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. 538-7346
FabrikantnummerAD5231BRUZ10
FabrikantAnalog Devices
€ 4,51
Each
Aantal stuks
Serial-SPI 10kΩ 1024 Linear, Log Non-Volatile 1 Surface Mount TSSOP 16 Dual, Single 3 V, 5 V ±2.5V 5 x 4.4 x 1.05mm 1.05mm
RS-stocknr. 178-4878
FabrikantnummerMCP4251-104E/P
FabrikantMicrochip
€ 0,66
Each (In a Tube of 30)
Aantal stuks
Serial-SPI 100kΩ 257 Linear Volatile 2 Through Hole PDIP 14 Single 1.8 → 5.5 V - 0.4 x 0.28 x 0.195in 4.95mm
RS-stocknr. 709-4752
FabrikantnummerAD5282BRUZ20
FabrikantAnalog Devices
€ 4,60
Each
Aantal stuks
Serial-3 Wire, Serial-I2C 20kΩ 256 - Volatile 2 Surface Mount TSSOP 16 Dual, Single 15 V ±5V 5 x 4.4 x 1.05mm 1.05mm
RS-stocknr. 709-5825
FabrikantnummerAD5290YRMZ100
FabrikantAnalog Devices
€ 4,60
Each
Aantal stuks
Serial-3 Wire, Serial-SPI 100kΩ 256 - Volatile 1 Surface Mount MSOP 10 Dual, Single 15 V ±12 V, ±5 V, ±9 V 3 x 3 x 0.85mm 0.85mm
RS-stocknr. 170-8222
FabrikantnummerX9C102PZ
FabrikantIntersil
€ 0,896
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. 921-5848
FabrikantnummerX9C102PZ
€ 5,65
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. 819-7092
FabrikantnummerAD5247BKSZ10-RL7
FabrikantAnalog Devices
€ 1,202
Each (In a Pack of 5)
Aantal stuks
I2C, Serial-2 Wire 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. 160-4481
FabrikantnummerAD5247BKSZ10-RL7
FabrikantAnalog Devices
€ 0,585
Each (On a Reel of 3000)
Aantal stuks
I2C, Serial-2 Wire 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. 796-8880
FabrikantnummerAD5111BCPZ10-500R7
FabrikantAnalog Devices
€ 1,784
Each (In a Pack of 5)
Aantal stuks
Up/Down 10kΩ 128 Linear Non-Volatile 1 Surface Mount LFCSP 8 Single 2.3 → 5.5 V - 2 x 2 x 0.55mm 0.55mm
RS-stocknr. 709-5828
FabrikantnummerAD5290YRMZ50
FabrikantAnalog Devices
€ 4,60
Each
Aantal stuks
Serial-3 Wire, Serial-SPI 50kΩ 256 - Volatile 1 Surface Mount MSOP 10 Dual, Single 15 V ±12 V, ±5 V, ±9 V 3 x 3 x 0.85mm 0.85mm
RS-stocknr. 923-1474
FabrikantnummerX9C102SZ
€ 3,918
Each (In a Tube of 100)
Aantal stuks
Serial-3 Wire 1kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
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. 921-5680
FabrikantnummerX9C102SZ
€ 6,195
Each (In a Pack of 2)
Aantal stuks
Serial-3 Wire 1kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
RS-stocknr. 796-8827
FabrikantnummerAD5144BRUZ10
FabrikantAnalog Devices
€ 5,66
Each
Aantal stuks
Serial-SPI 10kΩ 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
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