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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Beskrivning Pris 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-artikelnummer 160-1638
Tillv. art.nrAD5110BCPZ10-500R7
VarumärkeAnalog Devices
11,035 kr
Each (On a Reel of 500)
Enheter
Serial-3 Wire, Serial-I2C 80kΩ 128 - Non-Volatile 1 Surface Mount LFCSP UD 8 Single 2.3 → 5.5 V - 2 x 2 x 0.6mm 0.6mm
RS-artikelnummer 806-5294
Tillv. art.nrAD5110BCPZ10-500R7
VarumärkeAnalog Devices
19,294 kr
Each (In a Pack of 5)
Enheter
Serial-3 Wire, Serial-I2C 80kΩ 128 - Non-Volatile 1 Surface Mount LFCSP UD 8 Single 2.3 → 5.5 V - 2 x 2 x 0.6mm 0.6mm
RS-artikelnummer 819-5620
Tillv. art.nrMCP42010-I/ST
VarumärkeMicrochip
15,532 kr
Each (In a Tube of 96)
Enheter
SPI 12kΩ 256 Linear Volatile 2 Surface Mount TSSOP 14 Single 2.7 → 5.5 V - 5.1 x 4.5 x 0.95mm 0.95mm
RS-artikelnummer 111-2252
Tillv. art.nrAD5160BRJZ100-R2
VarumärkeAnalog Devices
16,163 kr
Each (On a Reel of 250)
Enheter
Serial-3 Wire, Serial-SPI 100kΩ 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-artikelnummer 497-2690
Tillv. art.nrAD5242BRUZ10
VarumärkeAnalog Devices
30,40 kr
Each
Enheter
Serial-2 Wire, Serial-I2C 10kΩ 256 - Volatile 2 Surface Mount TSSOP 16 Dual, Single 3 V, 5 V ±2.5V 5 x 4.4 x 1.05mm 1.05mm
RS-artikelnummer 427-064
Tillv. art.nrAD5242BRZ10
VarumärkeAnalog Devices
30,566 kr
Each (In a Pack of 5)
Enheter
Serial-2 Wire, Serial-I2C 10kΩ 256 - Volatile 2 Surface Mount SOIC 16 Dual, Single 3 V, 5 V ±2.5V 10 x 4 x 1.5mm 1.5mm
RS-artikelnummer 497-0745
Tillv. art.nrAD5235BRUZ25
VarumärkeAnalog Devices
90,89 kr
Each
Enheter
Serial-2 Wire, Serial-I2C 25kΩ 1024 Linear, Log Non-Volatile 2 Surface Mount TSSOP 16 Dual, Single 3.3 V, 5 V ±2.5V 5 x 4.4 x 1.05mm 1.05mm
RS-artikelnummer 697-6843
Tillv. art.nrAD5160BRJZ100-R2
VarumärkeAnalog Devices
24,30 kr
Each (In a Pack of 5)
Enheter
Serial-3 Wire, Serial-SPI 100kΩ 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-artikelnummer 106-7041
Tillv. art.nrAD5235BRUZ25
VarumärkeAnalog Devices
72,341 kr
Each (In a Tube of 96)
Enheter
Serial-2 Wire, Serial-I2C 25kΩ 1024 Linear, Log Non-Volatile 2 Surface Mount TSSOP 16 Dual, Single 3.3 V, 5 V ±2.5V 5 x 4.4 x 1.05mm 1.05mm
RS-artikelnummer 161-0163
Tillv. art.nrAD5242BRZ10
VarumärkeAnalog Devices
24,189 kr
Each (In a Tube of 48)
Enheter
Serial-2 Wire, Serial-I2C 10kΩ 256 - Volatile 2 Surface Mount SOIC 16 Dual, Single 3 V, 5 V ±2.5V 10 x 4 x 1.5mm 1.5mm
RS-artikelnummer 161-0610
Tillv. art.nrAD5242BRUZ10
VarumärkeAnalog Devices
25,698 kr
Each (In a Tube of 96)
Enheter
Serial-2 Wire, Serial-I2C 10kΩ 256 - Volatile 2 Surface Mount TSSOP 16 Dual, Single 3 V, 5 V ±2.5V 5 x 4.4 x 1.05mm 1.05mm
RS-artikelnummer 160-4561
Tillv. art.nrAD5246BKSZ5-RL7
VarumärkeAnalog Devices
11,16 kr
Each (On a Reel of 3000)
Enheter
Serial-3 Wire, Serial-I2C 5kΩ 128 - Non-Volatile 1 Surface Mount SC-70 6 Single 2.7 → 5.5 V - 2.2 x 1.35 x 1mm 1mm
RS-artikelnummer 165-2112
Tillv. art.nrMCP41HV51-103E/ST
VarumärkeMicrochip
10,998 kr
Each (In a Tube of 96)
Enheter
Serial-SPI 10kΩ 256 - Volatile 1 Surface Mount TSSOP 14 Dual, Single 36 V ±18V 5.1 x 4.5 x 1.05mm 1.05mm
RS-artikelnummer 921-5352
Tillv. art.nrX9313WSZ
44,98 kr
Each (In a Pack of 2)
Enheter
Serial-3 Wire 10kΩ 32 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
RS-artikelnummer 796-8782
Tillv. art.nrAD5122ABRUZ10
VarumärkeAnalog Devices
33,76 kr
Each (In a Pack of 2)
Enheter
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-artikelnummer 669-6363
Tillv. art.nrMCP41050-I/SN
VarumärkeMicrochip
12,45 kr
Each (In a Pack of 5)
Enheter
Serial-SPI 50kΩ 256 Linear - 1 Surface Mount SOIC 8 Single 3.3 V, 5 V - 4.9 x 3.9 x 1.25mm 1.25mm
RS-artikelnummer 165-9395
Tillv. art.nrDS1809-010+
VarumärkeMaxim Integrated
25,385 kr
Each (In a Tube of 50)
Enheter
Contact/Closure 10kΩ 64 Linear Non-Volatile 1 Through Hole PDIP 8 Single 4.5 → 5.5 V - 9.91 x 7.87 x 4.45mm 4.45mm
RS-artikelnummer 165-1986
Tillv. art.nrMCP4451-103E/ST
VarumärkeMicrochip
9,833 kr
Each (In a Tube of 74)
Enheter
Serial-SPI 10kΩ 256 Linear - 2 Surface Mount TSSOP 20 Single 2.7 → 5.5 V - 5.1 x 4.5 x 0.95mm 0.95mm
RS-artikelnummer 183-1969
Tillv. art.nrAD5203ARZ10
VarumärkeAnalog Devices
45,705 kr
Each (In a Pack of 2)
Enheter
Serial-3 Wire 10kΩ 64 Linear - 1 Surface Mount SOIC 24 Single 2.7 → 5.5 V - 15.6 x 7.6 x 2.35mm 2.35mm
RS-artikelnummer 189-8642
Tillv. art.nrMAX5494ETE+
VarumärkeMaxim Integrated
67,16 kr
Each (In a Pack of 2)
Enheter
Serial-SPI 10kΩ 1024 Linear Non-Volatile 1 Surface Mount TQFN 16 Dual 2.7 → 5.25 V ±2.5V 5.1 x 5.1 x 0.75mm 0.75mm
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