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

...
Read more Read less

Filters

Viewing 361 - 380 of 653 products
Results per page
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 Stock No. 201-8946
Mfr. Part No.AD8402AN10
$8.78
Each
units
Serial-3 Wire, Serial-SPI 10kΩ 256 Linear Volatile 2 Through Hole PDIP 14 Single 3 V, 5 V - 19.05 x 6.35 x 3.3mm 3.3mm
RS Stock No. 669-6363
Mfr. Part No.MCP41050-I/SN
BrandMicrochip
$2.19
Each (In a Pack of 5)
units
Serial-SPI 50kΩ 256 Linear - 1 Surface Mount SOIC 8 Single 3.3 V, 5 V - 4.9 x 3.9 x 1.25mm 1.25mm
RS Stock No. 191-3324
Mfr. Part No.MAX5395LATA+T
$1.322
Each (On a Reel of 2500)
units
I2C 10kΩ 256 Linear Volatile 1 Surface Mount TDFN-EP 8 Single 1.7 → 5.5 V - 2.1 x 2.1 x 0.75mm 0.75mm
RS Stock No. 191-3530
Mfr. Part No.DS1845E-010+T&R
$7.785
Each (In a Pack of 2)
units
- 10kΩ 100 Linear Non-Volatile 2 Surface Mount TSSOP 14 Single 2.7 → 5.5 V - 5.1 x 4.5 x 0.95mm 0.95mm
RS Stock No. 190-4767
Mfr. Part No.DS1809Z-010+
$3.282
Each (In a Tube of 100)
units
Contact/Closure 10kΩ 64 Linear Non-Volatile 1 Surface Mount SO 8 Single 4.5 → 5.5 V - 5 x 4 x 1.5mm 1.5mm
RS Stock No. 703-7927
Mfr. Part No.MCP4362-103E/ST
BrandMicrochip
$2.87
Each
units
Serial-SPI 10kΩ 257 Linear Non-Volatile 1 Surface Mount TSSOP 14 Single 2.7 → 5.5 V - 5.1 x 4.5 x 1.05mm 1.05mm
RS Stock No. 796-9142
Mfr. Part No.AD5121BCPZ100-RL7
$2.98
Each (In a Pack of 5)
units
Serial-3 Wire, Serial-I2C 100kΩ 128 Linear 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 Stock No. 170-4313
Mfr. Part No.MCP4012T-502E/CH
BrandMicrochip
$0.601
Each (On a Reel of 3000)
units
- - - - - - - - - - - - - -
RS Stock No. 758-9594
Mfr. Part No.AD5220BRMZ100
$4.95
Each
units
Serial-3 Wire 100kΩ 128 Linear Volatile - Surface Mount MSOP 8 Single 2.7 → 5.5 V - 3.2 x 3.2 x 1.1mm 1.1mm
RS Stock No. 709-5686
Mfr. Part No.AD5173BRMZ2.5
$6.21
Each
units
Serial-3 Wire, Serial-I2C 2.5kΩ 256 - Volatile 2 Surface Mount MSOP 10 Single 3 V, 5 V - 3 x 3 x 0.85mm 0.85mm
RS Stock No. 191-3919
Mfr. Part No.DS1881Z-050+
$2.82
Each (In a Tube of 50)
units
I2C 45 (Typ.)kΩ 64 Log Non-Volatile 2 Surface Mount SOIC 16 Single 5.5 (Max.) V - 10 x 4 x 1.5mm 1.5mm
RS Stock No. 738-6904
Mfr. Part No.MCP4023T-502E/CH
BrandMicrochip
$1.25
Each (On a Tape of 5)
units
Serial-2 Wire 5kΩ 64 Linear Non-Volatile 1 Surface Mount SOT-23 6 Single 1.8 → 5.5 V - 3.1 x 1.75 x 1.3mm 1.3mm
RS Stock No. 111-2246
Mfr. Part No.AD5207BRUZ10
$3.23
Each (In a Tube of 96)
units
Serial-2 Wire, Serial-I2C 10kΩ 256 Linear Volatile 2 Surface Mount TSSOP 14 Dual, Single 5 V ±2.5V 5 x 4.4 x 1mm 1mm
RS Stock No. 190-5199
Mfr. Part No.DS18030-050+
$7.41
Each (In a Pack of 2)
units
- 50kΩ 256 Linear Volatile 2 Through Hole DIP 16 Single 2.7 → 5.5 V - 19.43 x 7.87 x 4.45mm 4.45mm
RS Stock No. 823-4273
Mfr. Part No.MCP4451-103E/ST
BrandMicrochip
$2.06
Each (In a Pack of 5)
units
Serial-SPI 10kΩ 256 Linear - 2 Surface Mount TSSOP 20 Single 2.7 → 5.5 V - 5.1 x 4.5 x 0.95mm 0.95mm
RS Stock No. 139-284
Mfr. Part No.DS18030-010+
$7.35
Each
units
Serial-2 Wire 10kΩ 256 Linear Volatile 2 Through Hole PDIP 16 Single 3 V, 5 V - 19.43 x 7.87 x 4.45mm 4.45mm
RS Stock No. 146-0162
Mfr. Part No.MCP4362-503E/ST
BrandMicrochip
$2.40
Each (In a Tube of 96)
units
Serial-SPI 50kΩ 257 Linear Non-Volatile 4 Surface Mount TSSOP 14 Single 1.8 → 5.5 V - 5.1 x 4.5 x 1.05mm 1.05mm
RS Stock No. 158-5285
Mfr. Part No.AD5258BRMZ1
$2.11
Each (In a Tube of 50)
units
Serial-I2C 1kΩ 64 - Non-Volatile 1 Surface Mount MSOP 10 Single 3 V, 5 V - 3 x 3 x 0.85mm 0.85mm
RS Stock No. 709-5793
Mfr. Part No.AD5258BRMZ50
$2.60
Each (In a Pack of 5)
units
Serial-I2C 50kΩ 64 - Non-Volatile 1 Surface Mount MSOP 10 Single 3 V, 5 V - 3 x 3 x 0.85mm 0.85mm
RS Stock No. 160-1648
Mfr. Part No.AD5292BRUZ-100
$7.86
Each (In a Tube of 96)
units
Serial-SPI 100kΩ 1024 - Non-Volatile 1 Surface Mount TSSOP 14 Dual, Single 9 → 33 V ±9 → ±16.5V 5.1 x 4.5 x 1.05mm 1.05mm
Related Products
MCP413x/415x/423x/425x Digital Potentiometers The Microchip MCP413x, MCP415x, MCP423x ...
Description:
MCP413x/415x/423x/425x Digital Potentiometers The Microchip MCP413x, MCP415x, MCP423x and MCP425x range of devices are Digital Potentiometers that feature a SPI interface On board is volatile RAM memory.7-bit (129 steps) and 8-bit (257 steps) versions are available in various RAB resistance ...
MCP414x/416x/424x/426x Digital Potentiometers The Microchip MCP413x, MCP415x, MCP423x ...
Description:
MCP414x/416x/424x/426x Digital Potentiometers The Microchip MCP413x, MCP415x, MCP423x and MCP425x range of devices are Digital Potentiometers with a SPI interface and EEPROM memoryFeatured is Wiper Lock Technology, providing a method of ’locking’ the wiper configuration. To unlock a high-voltage command ...
MCP45HV51 is a single-channel, high voltage digital potentiometer ...
Description:
MCP45HV51 is a single-channel, high voltage digital potentiometer (Digipot) family that supports 10V ∼36V or +/-5V to +/-18V power rails It features 8-bit resolution with I2C interface. This family is available in TSSOP-14 and QFN-20 (5x5) packages and has 5kΩ, ...
MCP414x/416x/424x/426x Digital Potentiometers The Microchip MCP413x, MCP415x, MCP423x ...
Description:
MCP414x/416x/424x/426x Digital Potentiometers The Microchip MCP413x, MCP415x, MCP423x and MCP425x range of devices are Digital Potentiometers with a SPI interface and EEPROM memoryFeatured is Wiper Lock Technology, providing a method of ’locking’ the wiper configuration. To unlock a high-voltage command ...