{"title":"Adafruit MCP4728 Quad DAC with EEPROM - STEMMA QT / Qwiic","handle":"adafruit-mcp4728-quad-dac-with-eeprom-stemma-qt-qwiic","url":"/products/adafruit-mcp4728-quad-dac-with-eeprom-stemma-qt-qwiic","description":"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.\n\nEach 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.\n\nKey Features\n\n\n4× 12-Bit DAC Channels – Independent voltage outputs with 4096-step resolution\n\nBuilt-In EEPROM – Save DAC settings to non-volatile memory for automatic recall on power-up\n\nFlexible Voltage Reference – Choose between VCC input or internal 2.048V reference per channel\n\nSelectable Gain – 1× or 2× gain with internal reference (0–2.048V or 0–4.096V output)\n\nI2C Interface – Simple two-wire communication for easy integration\n\nSTEMMA QT / Qwiic Ports – Solderless I2C daisy-chaining compatible with Qwiic and Grove (with adapter)\n\n3.3V and 5V Compatible – Works with a wide range of microcontrollers and single-board computers\n\n\nIdeal For\n\nPrecision voltage control for analogue circuits\nCalibration and testing setups requiring adjustable reference voltages\nAudio synthesis and waveform generation\nServo and motor control with analogue voltage inputs\n\n\nPackage Contents\n\n1× Adafruit MCP4728 Quad DAC Breakout (with STEMMA QT / Qwiic connectors)\n\n\n\nTip: Use the internal 2.048V reference with 1× gain for ~3.3V applications, or 2× gain for ~5V applications, for consistent output independent of supply voltage fluctuations.\n\n\nResources\n\nMCP4728 Guide with Wiring & Code (Adafruit Learn)\nWhat is STEMMA QT? (Adafruit Learn Guide)\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":4381,"title":"Default Title","sku":"AF-4470","price":15.44,"on_sale":false,"in_stock":true,"available_quantity":87,"option1":"Default Title"}]}