SparkFun Qwiic 12 Bit DAC Breakout - MCP4725

While most microcontrollers simulate an analogue voltage using Pulse Width Modulation (PWM) to create a digital square wave, many projects require a smoother signal. The SparkFun MCP4725 Qwiic 12 Bit DAC Breakout allows you to get precise voltage outputs from a microcontroller over a Qwiic connection.

This Digital-to-Analogue Converter is an excellent choice for applications where PWM simply falls short, offering the precision needed for demanding electronics projects.

• Smooth Signal Generation: Deliver clean voltage signals for sound generation, custom musical instruments, or sensitive analogue actuators.
• Standard Resolution: The 12-bit resolution provides 4,096 precise voltage steps between GND and VCC (2.7V to 5.5V), giving you precise control over your hardware.
• Onboard Memory: Features internal non-volatile memory (EEPROM) that allows you to store a specific voltage setting. Upon power-up, the DAC immediately outputs the stored level, making it highly effective for set-and-forget calibration or reliable voltage-reference applications.

Simplified Solderless Integration

This DAC breakout board uses the Qwiic Connect System, featuring a pair of Qwiic connectors for instant, solderless I²C communication and power delivery. For those of you integrating the board into custom layouts or breadboards, standard 0.1-inch-spaced plated-through-hole (PTH) pins are also broken out for VCC, GND, SDA, SCL, and the MCP4725's Signal OUT pin.

By combining true analogue generation with non-volatile memory and straightforward I²C integration, this breakout ensures your microcontroller can handle analogue tasks efficiently and consistently.

• Schematic
• KiCad Files
• Hookup Guide
• Datasheet (MCP4725)
• Libraries:
  • Arduino Library
  • Python Package
• Qwiic Info Page
• Github Hardware Repo