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.
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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Part Details Brand 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 Length Width Maximum Operating Temperature Minimum Operating Temperature
AD5160BRJZ10-RL7, Digital Potentiometer 10kΩ 256-Position Linear SPI 8-Pin SOT-23 Analog Devices SPI 10kΩ 256 Linear - 1 Surface Mount SOT-23 8 Single 2.7 → 5.5 V - 3 x 1.7 x 1.3mm 1.3mm 3mm 1.7mm +125 °C -40 °C
AD5160BRJZ100-RL7, Digital Potentiometer 100kΩ 256-Position Linear SPI 8-Pin SOT-23 Analog Devices SPI 100kΩ 256 Linear - 1 Surface Mount SOT-23 8 Single 2.7 → 5.5 V - 3 x 1.7 x 1.3mm 1.3mm 3mm 1.7mm +125 °C -40 °C
AD5290YRMZ10-R7, Digital Potentiometer 10kΩ 256-Position Linear 10-Pin MSOP Analog Devices - 10kΩ 256 Linear - 1 Surface Mount MSOP 10 Dual, Single 20 → 30 V ±10 to ±15V 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 3.1mm +125 °C -40 °C
AD8402ARUZ1, Digital Potentiometer 1kΩ 256-Position Linear 14-Pin TSSOP Analog Devices - 1kΩ 256 Linear - 1 Surface Mount TSSOP 14 Single 2.7 → 5.5 V - 5.1 x 4.5 x 1.05mm 1.05mm 5.1mm 4.5mm +125 °C -40 °C
AD5243BRMZ10, Digital Potentiometer 10kΩ 256-Position Linear 2-Channel 10-Pin MSOP Analog Devices - 10kΩ 256 Linear Non-Volatile 2 Surface Mount MSOP 10 Single 2.7 → 5.5 V - 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 3.1mm +125 °C -40 °C
AD5280BRUZ50, Digital Potentiometer 50kΩ 256-Position Linear I2C, Serial-2 Wire 14-Pin TSSOP Analog Devices I2C, Serial-2 Wire 50kΩ 256 Linear - 1 Surface Mount TSSOP 14 Dual, Single 10 → 15 V ±5.5V 5.1 x 4.5 x 1.05mm 1.05mm 5.1mm 4.5mm +85 °C -40 °C
AD5207BRUZ100, Digital Potentiometer 100kΩ 256-Position Linear Serial-3 Wire 14-Pin TSSOP Analog Devices Serial-3 Wire 100kΩ 256 Linear Non-Volatile 1 Surface Mount TSSOP 14 Dual, Single 2.7 → 5.5 V ±2.2 to ±2.7V 5.1 x 4.5 x 0.95mm 0.95mm 5.1mm 4.5mm +125 °C -40 °C
AD5170BRMZ2.5, Digital Potentiometer 2.5kΩ 256-Position Linear I2C, Serial-2 Wire 10-Pin MSOP Analog Devices I2C, Serial-2 Wire 2.5kΩ 256 Linear Volatile 1 Surface Mount MSOP 10 Single 2.7 → 5.5 V - 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 3.1mm +125 °C -40 °C
AD5243BRMZ100, Digital Potentiometer 100kΩ 256-Position Linear 2-Channel I2C, Serial-2 Wire 10-Pin MSOP Analog Devices I2C, Serial-2 Wire 100kΩ 256 Linear Non-Volatile 2 Surface Mount MSOP 10 Single 2.7 → 5.5 V - 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 3.1mm +125 °C -40 °C
AD5271BRMZ-20, Digital Potentiometer 20kΩ 256-Position Linear SPI 10-Pin MSOP Analog Devices SPI 20kΩ 256 Linear Non-Volatile 1 Surface Mount MSOP 10 Dual, Single 2.7 → 5.5 V ±2.5 to ±2.75V 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 3.1mm +125 °C -40 °C
AD5271BRMZ-100, Digital Potentiometer 100kΩ 256-Position Linear SPI 10-Pin MSOP Analog Devices SPI 100kΩ 256 Linear Non-Volatile 1 Surface Mount MSOP 10 Dual, Single 2.7 → 5.5 V ±2.5 to ±2.75V 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 3.1mm +125 °C -40 °C
AD5248BRMZ2.5, Digital Potentiometer 2.5kΩ 256-Position Linear 2-Channel I2C, Serial-2 Wire 10-Pin MSOP Analog Devices I2C, Serial-2 Wire 2.5kΩ 256 Linear Non-Volatile 2 Surface Mount MSOP 10 Single 2.7 → 5.5 V - 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 3.1mm +125 °C -40 °C
AD5203ARZ10, Digital Potentiometer 10kΩ 64-Position Linear Serial-3 Wire 24-Pin SOIC Analog Devices Serial-3 Wire 10kΩ 64 Linear - 1 Surface Mount SOIC 24 Single 2.7 → 5.5 V - 15.6 x 7.6 x 2.35mm 2.35mm 15.6mm 7.6mm +85 °C -40 °C
AD5260BRUZ200, Digital Potentiometer 200kΩ 256-Position Linear Serial-3 Wire 14-Pin TSSOP Analog Devices Serial-3 Wire 200kΩ 256 Linear - 1 Surface Mount TSSOP 14 Dual, Single 5 → 15 V ±5.5V 5.1 x 4.5 x 1.05mm 1.05mm 5.1mm 4.5mm +85 °C -40 °C
AD5160BRJZ10-RL7, Digital Potentiometer 10kΩ 256-Position Linear SPI 8-Pin SOT-23 Analog Devices SPI 10kΩ 256 Linear - 1 Surface Mount SOT-23 8 Single 2.7 → 5.5 V - 3 x 1.7 x 1.3mm 1.3mm 3mm 1.7mm +125 °C -40 °C
AD5160BRJZ100-RL7, Digital Potentiometer 100kΩ 256-Position Linear SPI 8-Pin SOT-23 Analog Devices SPI 100kΩ 256 Linear - 1 Surface Mount SOT-23 8 Single 2.7 → 5.5 V - 3 x 1.7 x 1.3mm 1.3mm 3mm 1.7mm +125 °C -40 °C
AD5170BRMZ2.5, Digital Potentiometer 2.5kΩ 256-Position Linear I2C, Serial-2 Wire 10-Pin MSOP Analog Devices I2C, Serial-2 Wire 2.5kΩ 256 Linear Volatile 1 Surface Mount MSOP 10 Single 2.7 → 5.5 V - 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 3.1mm +125 °C -40 °C
AD5203ARZ10, Digital Potentiometer 10kΩ 64-Position Linear Serial-3 Wire 24-Pin SOIC Analog Devices Serial-3 Wire 10kΩ 64 Linear - 1 Surface Mount SOIC 24 Single 2.7 → 5.5 V - 15.6 x 7.6 x 2.35mm 2.35mm 15.6mm 7.6mm +85 °C -40 °C
AD5207BRUZ100, Digital Potentiometer 100kΩ 256-Position Linear Serial-3 Wire 14-Pin TSSOP Analog Devices Serial-3 Wire 100kΩ 256 Linear Non-Volatile 1 Surface Mount TSSOP 14 Dual, Single 2.7 → 5.5 V ±2.2 to ±2.7V 5.1 x 4.5 x 0.95mm 0.95mm 5.1mm 4.5mm +125 °C -40 °C
AD5243BRMZ10, Digital Potentiometer 10kΩ 256-Position Linear 2-Channel I2C, Serial-2 Wire 10-Pin MSOP Analog Devices I2C, Serial-2 Wire 10kΩ 256 Linear Non-Volatile 2 Surface Mount MSOP 10 Single 2.7 → 5.5 V - 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 3.1mm +125 °C -40 °C
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