The Adafruit DAC6578 Breakout provides eight independent 10-bit digital-to-analogue converters in a single package, all controllable over I2C. Set precise output voltages on up to eight channels simultaneously, making it ideal for multi-channel voltage control, LED dimming, or sensor calibration.

The DAC6578 is ratiometric — output 0 equals ground and output 1023 equals the reference voltage. By default, Vref is tied to the power pin, but you can cut a jumper to supply an external precision reference for more accurate output control.

Key Features

• 8× 10-Bit DAC Channels – Independent voltage outputs from a single chip
• I2C Interface – Simple two-wire control from any microcontroller or SBC
• 3.3V or 5V Compatible – Works with any logic level
• Ratiometric Output – 0 to Vref range (Vref tied to power by default, cuttable jumper for external reference)
• STEMMA QT / Qwiic Connectors – Two JST SH connectors for easy I2C daisy-chaining

Also Available

• DAC7578 Breakout – 8-channel 12-bit version for higher resolution

Ideal For

• Multi-channel voltage control and waveform generation
• LED brightness control across multiple channels
• Sensor calibration and test equipment
• Analogue signal simulation

Package Contents

• 1× Adafruit DAC6578 Breakout (assembled)