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 538-7374
Tillv. art.nrAD5232BRUZ10
VarumärkeAnalog Devices
56,84 kr
Each
Enheter
Serial-2 Wire, Serial-I2C 10kΩ 256 Linear, Log Non-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 183-2128
Tillv. art.nrAD5271BRMZ-100
VarumärkeAnalog Devices
23,396 kr
Each (In a Pack of 5)
Enheter
SPI 100kΩ 256 Linear Non-Volatile 1 Surface Mount MSOP 10 Dual, Single 2.7 to 5.5 V ±2.5 to ±2.75V 3.1 x 3.1 x 0.95mm 0.95mm
RS-artikelnummer 738-6758
Tillv. art.nrMCP4013T-502E/CH
VarumärkeMicrochip
4,798 kr
Each (On a Tape of 5)
Enheter
Serial-2 Wire 5kΩ 64 Linear Volatile 1 Surface Mount SOT-23 6 Single 1.8 to 5.5 V - 3.1 x 1.75 x 1.3mm 1.3mm
RS-artikelnummer 190-5375
Tillv. art.nrMAX5482EUD+
VarumärkeMaxim Integrated
40,758 kr
Each (In a Pack of 5)
Enheter
- 50kΩ 1024 Linear Non-Volatile 1 Surface Mount TSSOP 14 Dual, Single 2.7 to 5.25 V -2.5 → -0.2V 5.1 x 4.5 x 0.95mm 0.95mm
RS-artikelnummer 165-3382
Tillv. art.nrMCP4017T-104E/LT
VarumärkeMicrochip
3,516 kr
Each (On a Reel of 3000)
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 523-7386
Tillv. art.nrAD8403ARZ10
VarumärkeAnalog Devices
66,86 kr
Each
Enheter
Serial-3 Wire, Serial-SPI 10kΩ 256 Linear Volatile 4 Surface Mount SOIC W 24 Single 3 V, 5 V - 15.6 x 7.6 x 2.35mm 2.35mm
RS-artikelnummer 159-7531
Tillv. art.nrMCP4442-502E/ST
VarumärkeMicrochip
7,144 kr
Each (In a Tube of 96)
Enheter
Serial-I2C (2 Wire) 5kΩ 129 Linear Non-Volatile 4 Surface Mount TSSOP 14 Single 1.8 to 5.5 V - 5.1 x 4.5 x 1.05mm 1.05mm
RS-artikelnummer 806-5336
Tillv. art.nrAD5292BRUZ-100
VarumärkeAnalog Devices
57,905 kr
Each (In a Pack of 2)
Enheter
Serial-SPI 100kΩ 1024 - Non-Volatile 1 Surface Mount TSSOP 14 Dual, Single 9 to 33 V ±9 → ±16.5V 5.1 x 4.5 x 1.05mm 1.05mm
RS-artikelnummer 709-5676
Tillv. art.nrAD5162BRMZ2.5
VarumärkeAnalog Devices
23,25 kr
Each
Enheter
Serial-3 Wire, Serial-SPI 2.5kΩ 256 Linear Volatile 2 Surface Mount MSOP 10 Single 3 V, 5 V - 3 x 3 x 0.85mm 0.85mm
RS-artikelnummer 709-5771
Tillv. art.nrAD5252BRUZ50
VarumärkeAnalog Devices
35,72 kr
Each
Enheter
Serial-3 Wire, Serial-I2C 50kΩ 256 Linear Non-Volatile 2 Surface Mount TSSOP 14 Dual, Single 3 V, 5 V ±2.5V 5 x 4.4 x 1mm 1mm
RS-artikelnummer 912-2770
Tillv. art.nrMCP41100-E/SN
VarumärkeMicrochip
11,719 kr
Each (In a Tube of 100)
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 189-7152
Tillv. art.nrDS1804-050+
VarumärkeMaxim Integrated
22,61 kr
Each (In a Tube of 50)
Enheter
Increment/Decrement 50kΩ 100 Linear Non-Volatile 1 Through Hole PDIP 8 Single 3 V, 5 V - 9.91 x 7.87 x 4.45mm 4.45mm
RS-artikelnummer 821-3021
Tillv. art.nrCAT5114LI-50-G
VarumärkeON Semiconductor
13,23 kr
Each (In a Pack of 5)
Enheter
Up/Down 50kΩ 32 Linear Non-Volatile 1 Through Hole PDIP 8 Single 2.5 to 6 V - 10.16 x 7.11 x 4.95mm 4.95mm
RS-artikelnummer 538-7368
Tillv. art.nrAD5231BRUZ50
VarumärkeAnalog Devices
45,64 kr
Each
Enheter
Serial-2 Wire, Serial-I2C 50kΩ 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-artikelnummer 160-2735
Tillv. art.nrAD5111BCPZ80-500R7
VarumärkeAnalog Devices
10,921 kr
Each (On a Reel of 500)
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 158-0472
Tillv. art.nrAD5245BRJZ10-R2
VarumärkeAnalog Devices
14,139 kr
Each (On a Reel of 250)
Enheter
Serial-3 Wire, Serial-I2C 10kΩ 256 - Volatile 1 Surface Mount SOT-23 8 Single 3 V, 5 V - 2.9 x 1.6 x 1.15mm 1.15mm
RS-artikelnummer 193-1543
Tillv. art.nrISL90728WIE627Z-T7A
19,708 kr
Each (In a Pack of 5)
Enheter
Serial-I2C 10kΩ 128 - Volatile 1 Surface Mount SC-70 6 Single 2.7 to 5.5 V - 2.15 x 1.35 x 1mm 1mm
RS-artikelnummer 159-9335
Tillv. art.nrAD5111BCPZ10-500R7
VarumärkeAnalog Devices
10,921 kr
Each (On a Reel of 500)
Enheter
Up/Down 10kΩ 128 Linear Non-Volatile 1 Surface Mount LFCSP 8 Single 2.3 to 5.5 V - 2 x 2 x 0.55mm 0.55mm
RS-artikelnummer 165-4679
Tillv. art.nrMCP42050-E/SL
VarumärkeMicrochip
17,519 kr
Each (In a Tube of 57)
Enheter
Serial-SPI 50kΩ 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 191-3176
Tillv. art.nrDS1267BS-100+
VarumärkeMaxim Integrated
56,84 kr
Each
Enheter
- 100kΩ 256 Linear Volatile 2 Surface Mount SOIC 16 Single 4.5 to 5.5 V - 10.5 x 7.6 x 2.35mm 2.35mm