Adafruit DS1841 I2C Digital 10K Potentiometer Breakout
We have ✅ 4 available of the AF-4570 in our Sydney warehouse. An extra 42 units available with a short lead time.
The Adafruit DS1841 is an I2C-controlled logarithmic digital potentiometer from Maxim with a resistance range of 3.7 kΩ to 22 kΩ across 128 tap points. Unlike linear potentiometers, the DS1841's logarithmic response curve makes it particularly well suited for audio applications such as volume control, where it better matches the human ear's perception of sound levels.
The DS1841 also features built-in temperature compensation with hysteresis, plus a 72-entry look-up table (LUT) that maps specific wiper positions to temperature ranges from -39°C to 100°C. The breakout includes STEMMA QT / Qwiic connectors for solderless I2C wiring and works with 3.3V or 5V logic.
Key Features
- Logarithmic Response – Ideal for audio volume control and human-perception-matched applications
- 128 Tap Points – Fine resolution across 3.7 kΩ to 22 kΩ range
- Temperature Compensation – Built-in automatic resistance adjustment based on temperature
- 72-Entry Look-Up Table – Map wiper positions to specific temperature ranges
- I2C Control – Simple digital interface with STEMMA QT / Qwiic connectors
- 3.3V and 5V Compatible – Works with a wide range of microcontrollers
Ideal For
- Audio volume control circuits
- Temperature-compensated analogue adjustments
- Digitally controlled calibration
- Replacing mechanical potentiometers with software control
Package Contents
- 1× DS1841 I2C logarithmic potentiometer breakout with STEMMA QT connectors
The Adafruit DS1841 I2C Digital 10K Potentiometer Breakout appears in the following collections:
