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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Description Price 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庫存編號 144-9093
製造零件編號MCP41010-E/P
BrandMicrochip
HK$13.172
毎管:60 個
單位
Serial-SPI 10kΩ 256 Linear - 1 Through Hole PDIP 8 Single 3.3 V, 5 V - 9.27 x 6.35 x 3.3mm 3.3mm
RS庫存編號 403-676
製造零件編號MCP41010-E/P
BrandMicrochip
HK$16.516
/個 (每包:5個)
單位
Serial-SPI 10kΩ 256 Linear - 1 Through Hole PDIP 8 Single 3.3 V, 5 V - 9.27 x 6.35 x 3.3mm 3.3mm
RS庫存編號 669-6367
製造零件編號MCP42010-I/P
BrandMicrochip
HK$21.02
/個 (每包:2個)
單位
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庫存編號 628-3762
製造零件編號MCP41010-I/SN
BrandMicrochip
HK$13.336
/個 (每包:5個)
單位
Serial-SPI 10kΩ 256 Linear - 1 Surface Mount SOIC 8 Single 3.3 V, 5 V - 4.9 x 3.9 x 1.25mm 1.25mm
RS庫存編號 889-5878
製造零件編號MCP41010-I/SN
BrandMicrochip
HK$11.319
毎管:100 個
單位
Serial-SPI 10kΩ 256 Linear - 1 Surface Mount SOIC 8 Single 3.3 V, 5 V - 4.9 x 3.9 x 1.25mm 1.25mm
RS庫存編號 146-0134
製造零件編號MCP42010-I/P
BrandMicrochip
HK$18.04
毎管:30 個
單位
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庫存編號 144-5722
製造零件編號MCP41100-E/P
BrandMicrochip
HK$13.008
毎管:60 個
單位
Serial-SPI 100kΩ 256 Linear - 1 Through Hole PDIP 8 Single 3.3 V, 5 V - 9.27 x 6.35 x 3.3mm 3.3mm
RS庫存編號 806-5317
製造零件編號AD5272BRMZ-100
HK$44.285
/個 (每包:2個)
單位
Serial-3 Wire, Serial-I2C 100kΩ 1024 - Non-Volatile 1 Surface Mount MSOP 10 Dual, Single 2.7 to 5.5 V ±2.5 → ±2.75V 3.1 x 3.1 x 0.95mm 0.95mm
RS庫存編號 806-5298
製造零件編號AD5175BRMZ-10
HK$39.42
/個 (每包:2個)
單位
Serial-3 Wire, Serial-I2C 10kΩ 1024 - Non-Volatile 1 Surface Mount MSOP 10 Dual, Single 2.7 to 5.5 V ±2.5 → ±2.75V 3.1 x 3.1 x 0.95mm 0.95mm
RS庫存編號 160-4482
製造零件編號AD5171BRJZ5-R2
HK$19.60
個 (在毎卷:250)
單位
I2C, Serial-2 Wire 5kΩ 64 Linear Non-Volatile 1 Surface Mount SOT-23 8 Single 2.7 to 5.5 V - 2.9 x 1.6 x 1.3mm 1.3mm
RS庫存編號 921-5352
製造零件編號X9313WSZ
HK$45.19
/個 (每包:2個)
單位
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庫存編號 403-654
製造零件編號MCP41100-E/P
BrandMicrochip
HK$15.362
/個 (每包:5個)
單位
Serial-SPI 100kΩ 256 Linear - 1 Through Hole PDIP 8 Single 3.3 V, 5 V - 9.27 x 6.35 x 3.3mm 3.3mm
RS庫存編號 403-743
製造零件編號MCP41100-E/SN
BrandMicrochip
HK$14.648
/個 (每包:5個)
單位
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庫存編號 912-2770
製造零件編號MCP41100-E/SN
BrandMicrochip
HK$12.222
毎管:100 個
單位
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庫存編號 806-5301
製造零件編號AD5270BRMZ-50
HK$43.93
/個 (每包:2個)
單位
Serial-SPI 50kΩ 1024 - Non-Volatile 1 Surface Mount MSOP 10 Dual, Single 2.7 to 5.5 V ±2.5 → ±2.75V 3.1 x 3.1 x 0.95mm 0.95mm
RS庫存編號 190-4769
製造零件編號DS1881E-050+
HK$17.531
毎管:96 個
單位
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庫存編號 697-6868
製造零件編號AD5162BRMZ100
HK$25.704
/個 (每包:5個)
單位
Serial-3 Wire, Serial-SPI 100kΩ 256 Linear Volatile 2 Surface Mount MSOP 10 Single 3 V, 5 V - 3 x 3 x 0.85mm 0.85mm
RS庫存編號 190-5297
製造零件編號MAX5401EKA+T
HK$25.252
/個 (每包:5個)
單位
3-Wire SPI 100kΩ 256 Linear Volatile 1 Surface Mount SOT-23 8 Single 2.7 to 5.5 V - 3 x 1.75 x 1.3mm 1.3mm
RS庫存編號 145-9002
製造零件編號MCP41010-I/P
BrandMicrochip
HK$11.964
毎管:60 個
單位
Serial-SPI 10kΩ 256 Linear Volatile 1 Through Hole PDIP 8 Single 2.7 to 5.5 V - 9.78 x 6.6 x 3.68mm 3.68mm
RS庫存編號 191-3324
製造零件編號MAX5395LATA+T
HK$7.637
個 (在毎卷:2500)
單位
I2C 10kΩ 256 Linear Volatile 1 Surface Mount TDFN-EP 8 Single 1.7 to 5.5 V - 2.1 x 2.1 x 0.75mm 0.75mm