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 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 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 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 497-2690
Tillv. art.nrAD5242BRUZ10
VarumärkeAnalog Devices
29,33 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 111-2252
Tillv. art.nrAD5160BRJZ100-R2
VarumärkeAnalog Devices
14,883 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 497-0745
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 758-9604
Tillv. art.nrAD5293BRUZ-50
VarumärkeAnalog Devices
56,09 kr
Each
Enheter
Serial-SPI 50kΩ 1024 Linear Volatile - Surface Mount TSSOP 14 Dual, Single 9 to 33 V ±9 → ±16.5V 5.1 x 4.5 x 1.2mm 1.2mm
RS-artikelnummer 538-4858
Tillv. art.nrAD5254BRUZ100
VarumärkeAnalog Devices
53,64 kr
Each
Enheter
Serial-2 Wire, Serial-I2C 100kΩ 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-artikelnummer 709-5660
Tillv. art.nrAD5161BRMZ5
VarumärkeAnalog Devices
16,70 kr
Each (In a Pack of 5)
Enheter
Serial-2 Wire, Serial-3 Wire, Serial-I2C, Serial-SPI 5kΩ 256 - Volatile 1 Surface Mount MSOP 10 Single 3 V, 5 V - 3 x 3 x 0.85mm 0.85mm
RS-artikelnummer 165-3467
Tillv. art.nrMCP4161-103E/P
VarumärkeMicrochip
7,221 kr
Each (In a Tube of 60)
Enheter
Serial-SPI 10kΩ 257 Linear Non-Volatile 1 Through Hole PDIP 8 Single 1.8 to 5.5 V - 0.4 x 0.28 x 0.195in 4.95mm
RS-artikelnummer 875-8665
Tillv. art.nrAD5111BCPZ80-500R7
VarumärkeAnalog Devices
19,024 kr
Each (In a Pack of 5)
Enheter
Up/Down 80kΩ 128 Linear Non-Volatile 1 Surface Mount LFCSP 8 Single 5.5 V - 2 x 2 x 0.6mm 0.6mm
RS-artikelnummer 738-6799
Tillv. art.nrMCP4017T-104E/LT
VarumärkeMicrochip
4,906 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 724-0154
Tillv. art.nrMCP4161-502E/SN
VarumärkeMicrochip
9,065 kr
Each (In a Pack of 2)
Enheter
Serial-SPI 5kΩ 257 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 1.8 to 5.5 V - 4.9 x 3.9 x 1.25mm 1.25mm
RS-artikelnummer 709-7121
Tillv. art.nrAD8402ARZ1
VarumärkeAnalog Devices
42,44 kr
Each
Enheter
Serial-3 Wire, Serial-SPI 1kΩ 256 Linear Volatile 2 Surface Mount SOIC 14 Single 3 V, 5 V - 8.75 x 4 x 1.5mm 1.5mm
RS-artikelnummer 709-5755
Tillv. art.nrAD5242BRZ100
VarumärkeAnalog Devices
29,43 kr
Each
Enheter
Serial-2 Wire, Serial-I2C 100kΩ 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 196-9014
Tillv. art.nrX9C102SIZ
68,195 kr
Each (In a Pack of 2)
Enheter
- - 32 - - - - - 8 - - - - -
RS-artikelnummer 190-5249
Tillv. art.nrDS1804Z-100+
VarumärkeMaxim Integrated
29,176 kr
Each (In a Pack of 5)
Enheter
Up/Down 100kΩ 100 Linear Non-Volatile 1 Surface Mount SO 8 Single 2.7 to 5.5 V - 5 x 4 x 1.5mm 1.5mm
RS-artikelnummer 209-7663
Tillv. art.nrMCP42010-I/SL
VarumärkeMicrochip
21,56 kr
Each (In a Pack of 5)
Enheter
SPI 12kΩ 2 Linear Volatile 2 - SOIC 14 - - - - -
RS-artikelnummer 191-3377
Tillv. art.nrMAX5455EUD+
VarumärkeMaxim Integrated
39,328 kr
Each (In a Pack of 5)
Enheter
Up/Down 100kΩ 256 Linear - 2 Surface Mount TSSOP 14 Single 2.7 to 5.5 V - 5.1 x 4.5 x 0.95mm 0.95mm