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 169-8268
Tillv. art.nrDS3501U+
VarumärkeMaxim Integrated
5,452 kr
Each (In a Tube of 50)
Enheter
Serial-I2C - - - - - Surface Mount μSOP 10 - - - 3.05 x 3.05 x 0.95mm 0.95mm
RS-artikelnummer 178-4879
Tillv. art.nrMCP4261-502E/P
VarumärkeMicrochip
8,792 kr
Each (In a Tube of 30)
Enheter
Serial-SPI 5kΩ 257 Linear Non-Volatile 2 Through Hole PDIP 8 Single 1.8 → 5.5 V - 0.4 x 0.28 x 0.195in 4.95mm
RS-artikelnummer 165-3378
Tillv. art.nrMCP4014T-103E/OT
VarumärkeMicrochip
2,753 kr
Each (On a Reel of 3000)
Enheter
Serial-2 Wire 10kΩ 64 Linear Volatile 1 Surface Mount SOT-23 5 Single 1.8 → 5.5 V - 3.1 x 1.75 x 1.3mm 1.3mm
RS-artikelnummer 190-4764
Tillv. art.nrDS1803E-010+
VarumärkeMaxim Integrated
33,743 kr
Each (In a Tube of 96)
Enheter
- 10kΩ 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 403-743
Tillv. art.nrMCP41100-E/SN
VarumärkeMicrochip
13,484 kr
Each (In a Pack of 5)
Enheter
Serial-SPI 100kΩ 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 145-8958
Tillv. art.nrMCP4661-103E/ST
VarumärkeMicrochip
9,137 kr
Each (In a Tube of 96)
Enheter
Serial-2 Wire, Serial-I2C 10kΩ 256 - Non-Volatile 2 Surface Mount TSSOP 14 Single 2.5 V, 3.3 V, 5 V - 5 x 4.4 x 1mm 1mm
RS-artikelnummer 817-3563
Tillv. art.nrMCP4361T-503E/ML
VarumärkeMicrochip
12,334 kr
Each (On a Reel of 3300)
Enheter
Serial-SPI 50kΩ 257 - Non-Volatile 4 Surface Mount QFN 20 Single 5.5 V - 4 x 4 x 1mm 1mm
RS-artikelnummer 158-5281
Tillv. art.nrAD5206BRZ10
VarumärkeAnalog Devices
40,183 kr
Each (In a Tube of 31)
Enheter
Serial-3 Wire, Serial-SPI 10kΩ 256 - Volatile 6 Surface Mount SOIC W 24 Dual, Single 3 V, 5 V ±2.5V 15.6 x 7.6 x 2.35mm 2.35mm
RS-artikelnummer 189-8313
Tillv. art.nrMAX5403EUB+
VarumärkeMaxim Integrated
35,652 kr
Each (In a Pack of 5)
Enheter
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-artikelnummer 145-8983
Tillv. art.nrMCP4551-503E/MS
VarumärkeMicrochip
5,916 kr
Each (In a Tube of 100)
Enheter
Serial-I2C 50kΩ 257 Linear Non-Volatile 1 Surface Mount MSOP 8 Single 1.8 → 5.5 V - 3 x 3 x 0.95mm 0.95mm
RS-artikelnummer 817-3572
Tillv. art.nrMCP4361T-503E/ST
VarumärkeMicrochip
12,334 kr
Each (On a Reel of 2500)
Enheter
Serial-SPI 50kΩ 257 - Non-Volatile 4 Surface Mount TSSOP 20 Single 5.5 V - 6.6 x 4.5 x 1.05mm 1.05mm
RS-artikelnummer 738-6758
Tillv. art.nrMCP4013T-502E/CH
VarumärkeMicrochip
4,446 kr
Each (On a Tape of 5)
Enheter
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-artikelnummer 738-6109
Tillv. art.nrMCP4011-502E/SN
VarumärkeMicrochip
4,446 kr
Each (In a Pack of 5)
Enheter
Serial-2 Wire 5kΩ 64 - Volatile - Surface Mount SOIC 8 Single 2.5 V, 3.3 V, 5 V - 4.9 x 3.9 x 1.25mm 1.25mm
RS-artikelnummer 146-0134
Tillv. art.nrMCP42010-I/P
VarumärkeMicrochip
15,613 kr
Each (In a Tube of 30)
Enheter
Serial-SPI 10kΩ 256 Linear - 2 Through Hole PDIP 14 Single 3.3 V, 5 V - 19.05 x 6.35 x 3.3mm 3.3mm
RS-artikelnummer 196-9008
Tillv. art.nrX9119TV14IZ-2.7
117,05 kr
Each
Enheter
- - - - - - - - 14 - - - - -
RS-artikelnummer 538-7778
Tillv. art.nrAD5242BRUZ1M
VarumärkeAnalog Devices
30,30 kr
Each
Enheter
Serial-2 Wire, Serial-I2C 1000kΩ 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 912-6564
Tillv. art.nrAD5243BRMZ50
VarumärkeAnalog Devices
13,31 kr
Each (In a Tube of 50)
Enheter
Serial-3 Wire, Serial-I2C 50kΩ 256 - Volatile 2 Surface Mount MSOP 10 Single 3 V, 5 V - 3 x 3 x 0.85mm 0.85mm
RS-artikelnummer 759-0692
Tillv. art.nrAD5200BRMZ10-REEL7
VarumärkeAnalog Devices
25,95 kr
Each
Enheter
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-artikelnummer 160-9911
Tillv. art.nrAD5141BCPZ100-RL7
VarumärkeAnalog Devices
21,971 kr
Each (On a Reel of 1500)
Enheter
Serial-I2C, Serial-SPI 100kΩ 256 Log Non-Volatile 1 Surface Mount LFCSP 16 Dual, Single 2.3 → 5.5 V ±2.25 → ±2.75V 3.1 x 3.1 x 0.75mm 0.75mm
RS-artikelnummer 158-0156
Tillv. art.nrAD5253BRUZ10
VarumärkeAnalog Devices
33,064 kr
Each (In a Tube of 75)
Enheter
Serial-2 Wire, Serial-I2C 10kΩ 64 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
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