Digital Potentiometers

Digital Potentiometers are three-terminal devices, two fixed end terminals and one wiper terminal which are used to vary resistance.

What is a Digital potentiometer?

A digital potentiometer also known as a digipot, is similar to a standard analogue potentiometer, which is a variable type resistor except the digital potentiometer has an IC (integrated circuit) that can take a signal input rather. 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 vulnerable 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 806-5294
Tillv. art.nrAD5110BCPZ10-500R7
VarumärkeAnalog Devices
20,026 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 to 5.5 V - 2 x 2 x 0.6mm 0.6mm
RS-artikelnummer 160-1638
Tillv. art.nrAD5110BCPZ10-500R7
VarumärkeAnalog Devices
11,496 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 to 5.5 V - 2 x 2 x 0.6mm 0.6mm
RS-artikelnummer 111-2252
Tillv. art.nrAD5160BRJZ100-R2
VarumärkeAnalog Devices
14,566 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 697-6843
Tillv. art.nrAD5160BRJZ100-R2
VarumärkeAnalog Devices
25,316 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 497-2690
Tillv. art.nrAD5242BRUZ10
VarumärkeAnalog Devices
32,95 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 497-0745
Tillv. art.nrAD5235BRUZ25
VarumärkeAnalog Devices
95,02 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 427-064
Tillv. art.nrAD5242BRZ10
VarumärkeAnalog Devices
31,054 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 190-5329
Tillv. art.nrMAX5437EUD+
VarumärkeMaxim Integrated
88,35 kr
Each (In a Pack of 2)
Enheter
3-Wire SPI, Microwire, QSPI 50kΩ 128 Linear - 1 Surface Mount TSSOP 14 Dual, Single 10 to 30 V ±5 to ±15V 5.1 x 4.5 x 0.95mm 0.95mm
RS-artikelnummer 190-4768
Tillv. art.nrDS1845E-010+
VarumärkeMaxim Integrated
33,896 kr
Each (In a Tube of 96)
Enheter
- 10kΩ 100 Linear Non-Volatile 2 Surface Mount TSSOP 14 Single 2.7 to 5.5 V - 5.1 x 4.5 x 0.95mm 0.95mm
RS-artikelnummer 724-0347
Tillv. art.nrMCP4632-502E/UN
VarumärkeMicrochip
4,50 kr
Each (In a Pack of 2)
Enheter
Serial-I2C 5kΩ 129 Linear Non-Volatile 2 Surface Mount MSOP 10 Single 1.8 to 5.5 V - 3 x 3 x 0.95mm 0.95mm
RS-artikelnummer 669-6373
Tillv. art.nrMCP42100-I/SL
VarumärkeMicrochip
22,075 kr
Each (In a Pack of 2)
Enheter
Serial-SPI 100kΩ 256 Linear - 2 Surface Mount SOIC 14 Single 3.3 V, 5 V - 8.65 x 3.9 x 1.25mm 1.25mm
RS-artikelnummer 738-6799
Tillv. art.nrMCP4017T-104E/LT
VarumärkeMicrochip
5,396 kr
Each (In a Pack of 5)
Enheter
Serial-I2C 100kΩ 128 Linear Volatile 1 Surface Mount SC-70 6 Single 1.8 to 5.5 V - 2 x 1.25 x 1mm 1mm
RS-artikelnummer 196-9003
Tillv. art.nrISL95810UIU8Z-T
11,851 kr
Each (On a Reel of 2500)
Enheter
- - - - - - - - 8 - - - - -
RS-artikelnummer 190-4769
Tillv. art.nrDS1881E-050+
VarumärkeMaxim Integrated
17,151 kr
Each (In a Tube of 96)
Enheter
I2C 45kΩ 64 Log Non-Volatile 2 Surface Mount TSSOP 16 Single 2.7 to 5.5 V - 5.1 x 4.5 x 0.95mm 0.95mm
RS-artikelnummer 160-9912
Tillv. art.nrAD5160BRJZ50-RL7
VarumärkeAnalog Devices
8,877 kr
Each (On a Reel of 3000)
Enheter
Serial-SPI 50kΩ 256 Linear Volatile 1 Surface Mount SOT-23 8 Single 2.7 to 5.5 V - 3 x 1.7 x 1.3mm 1.3mm
RS-artikelnummer 170-8172
Tillv. art.nrX9C103PZ
52,183 kr
Each (In a Tube of 50)
Enheter
Serial-3 Wire 10kΩ 100 Linear Non-Volatile 1 Through Hole PDIP 8 Single 5 V - 9.56 x 6.35 x 3.3mm 3.3mm
RS-artikelnummer 669-6449
Tillv. art.nrMCP4651-103E/ST
VarumärkeMicrochip
9,598 kr
Each (In a Pack of 5)
Enheter
Serial-2 Wire, Serial-I2C 10kΩ 256 - Volatile 2 Surface Mount TSSOP 14 Single 2.5 V, 3.3 V, 5 V - 5 x 4.4 x 1mm 1mm
RS-artikelnummer 183-1684
Tillv. art.nrAD5160BRJZ100-RL7
VarumärkeAnalog Devices
8,877 kr
Each (On a Reel of 3000)
Enheter
SPI 100kΩ 256 Linear - 1 Surface Mount SOT-23 8 Single 2.7 to 5.5 V - 3 x 1.7 x 1.3mm 1.3mm
RS-artikelnummer 820-9056
Tillv. art.nrAD5246BKSZ5-RL7
VarumärkeAnalog Devices
12,84 kr
Each (In a Pack of 5)
Enheter
Serial-3 Wire, Serial-I2C 5kΩ 128 - Non-Volatile 1 Surface Mount SC-70 6 Single 2.7 to 5.5 V - 2.2 x 1.35 x 1mm 1mm
RS-artikelnummer 189-8237
Tillv. art.nrDS3501U+
VarumärkeMaxim Integrated
10,131 kr
Each (In a Pack of 10)
Enheter
Serial-I2C - - - - - Surface Mount μSOP 10 - - - 3.05 x 3.05 x 0.95mm 0.95mm