MCP4725 12-Bit I2C DAC Module with EEPROM

The MCP4725 DAC Module provides a simple and precise way to output analog voltages from any microcontroller, such as Arduino or Raspberry Pi, which typically lack a dedicated Digital-to-Analog Converter. Based on the Microchip MCP4725 chip, it boasts 12-bit resolution, allowing it to generate 4096 discrete voltage steps. The output voltage is Rail-to-Rail (ranging from 0V up to the supply voltage). A key feature is the integrated EEPROM (Non-Volatile Memory), which can store the last set output value, allowing the DAC to immediately restore that voltage upon power-up. This module is ideal for applications requiring precise control of analog signals, such as sensor calibration, motor control, or high-quality sound generation.

Specification :

• Chipset: MCP4725
• Resolution: 12-bit (4096 steps: 0 – 4095)
• Output Type: Buffered Voltage Output (Rail-to-Rail: 0V to VDD)
• Communication Interface: I²C (Supports Standard, Fast, and High-Speed modes up to 3.4 Mbps)
• Supply Voltage (VDD): 2.7V to 5.5V (Single-Supply Operation)
• On-Board Memory: Non-Volatile EEPROM (Stores DAC value on power-down)
• Settling Time: Typically 6us (Fast response)
• I²C Address (Default): 0x62 (Configurable to 0x63 via A0 pin)
• Output Current: Capable of delivering up to approx 25mA to the load