• Description

Adafruit Digital 10K Pot - Qwiic

The DS1841 I2C Logarithmic Resistor from Adafruit allows you to adjust your circuit without manually turning a knob. With the DS1841, the relationship between resistance and the wiper setting is logarithmic. This means that as the wiper setting changes, the amount of resistance will depend on where in the wiper's range the current setting is. Log potentiometers are used in audio applications for things like volume control because they better match the response of human ear to sound.

The DS1841's resistance ranges from 22kOhms to 3.7 kOhms and has 128 tap points. Even more interestingly, the DS1841 can be configured to adjust its resistance based on temperature with hysteresis to keep things from jumping around. Additionally, the temperature compensation can be adjusted by using the LUT (Look Up Table) built into the DS1841. This table allows you to specify the wiper setting for each of 70 temperature increments between -39 and 100 degrees C, plus one each for above or below that range. You can even manually set the wiper to one of the entries in the LUT.

Quick Spec

• 22kΩ to 3.7kΩ Adjustable Logarithmic Resistor with a 3.6kΩ Fixed Resistor
• 128 Wiper Tap Points
• On-Chip Temperature Sensor and ADC
• 72-Byte Lookup Table (LUT)
• I2C-Compatible Serial Interface
• Address Pins Allow Up to Four DS1841s to Share the Same I2C Bus
• Digital Supply of 2.7V to 5.5V
• -40°C ~ +100°C Operating Range
• Dimensions: 25.5 x 17.6 x 4.6mm
• Net Weight: 4g

Wiper Resistance Graph

Wiring Diagram

Resources

• Product Page
• Product Wiki
• DS1841 Datasheet

Shipping List

• 1 x Adafruit Digital 10K Pot - Qwiic

Adafruit Digital 10K Pot - Qwiic

• Brand: Adafruit
• Product Code: AF4570
• Weight: 0.004kg
• Product Status : Active

Stock

Warehouse	Stock Status	Location
Centurion	In Stock	HH125
Stellenbosch	In Stock	Z6034
Bulk Location	No Stock

We ship free of charge between branches to complete your order.

• R145.00 (Inc Tax: R166.75)