Adafruit MCP4728 Quad DAC with EEPROM - STEMMA QT / Qwiic
100 units available with a short lead time.
The Adafruit MCP4728 Quad DAC with EEPROM provides four independent 12-bit digital-to-analogue converters in a single I2C package. Set precise output voltages for your project, and save your settings to the built-in EEPROM so they're automatically restored on power-up.
Each channel supports two voltage reference modes: use the input supply voltage (VCC) for 0–3.3V or 0–5V output, or switch to the internal 2.048V reference with selectable 1× or 2× gain for 0–2.048V or 0–4.096V output ranges. All configuration is done over I2C with no additional components required.
Key Features
- 4× 12-Bit DAC Channels – Independent voltage outputs with 4096-step resolution
- Built-In EEPROM – Save DAC settings to non-volatile memory for automatic recall on power-up
- Flexible Voltage Reference – Choose between VCC input or internal 2.048V reference per channel
- Selectable Gain – 1× or 2× gain with internal reference (0–2.048V or 0–4.096V output)
- I2C Interface – Simple two-wire communication for easy integration
- STEMMA QT / Qwiic Ports – Solderless I2C daisy-chaining compatible with Qwiic and Grove (with adapter)
- 3.3V and 5V Compatible – Works with a wide range of microcontrollers and single-board computers
Ideal For
- Precision voltage control for analogue circuits
- Calibration and testing setups requiring adjustable reference voltages
- Audio synthesis and waveform generation
- Servo and motor control with analogue voltage inputs
Package Contents
- 1× Adafruit MCP4728 Quad DAC Breakout (with STEMMA QT / Qwiic connectors)
Resources
The Adafruit MCP4728 Quad DAC with EEPROM - STEMMA QT / Qwiic appears in the following collections:
