MCP4725 12-Bit Digital-to-Analog Converter I2C DAC

With the MCP4725 breakout board, an Arduino generates analog voltages, for example a sine wave or tones for audio projects. It is controlled via I2C, and up to two MCP4725 with different addresses can run on one bus. The output voltage is proportional to the operating voltage, so 0 to 5 V at 5 V and 0 to 3 V at 3 V.

Recommended alternative for 0 to 10 V: Gravity I2C 2-Channel DAC Module 0-10V

Recommended Accessories:

• Dupont Cable M-F 20cm 20 Pieces

Features:

• A value can be stored in the internal EEPROM and is restored at startup
• I2C address according to the chip code: AP (A1) 0x62, with solder bridge ADDR 0x63. Other codes: AJ 0x60 or 0x61, AQ 0x64 or 0x65, AR 0x66 or 0x67
• The second address is selected via the ADDR solder bridge, the pull-ups can be set via the I2C PULLUPS solder bridge on the back
• Suitable library in the Arduino IDE under the search term MCP4725

Application Examples:

• Adjustable control voltage
• Sine and triangle signals
• Tones for audio projects

Documentation:

• MCP4725 tutorial (Adafruit)
• Adafruit MCP4725 library (GitHub)
• MCP4725 hookup guide (SparkFun)

Technical Data:

• Chip: MCP4725
• Resolution: 12 bit
• Default address: 0x62 (chip code AP)
• Operating voltage: 2.7 to 5.5 V
• Pins: OUT, GND, SCL, SDA, VCC, GND
• Internal EEPROM
• Color: red
• Size: 15 × 15 × 3 mm
• Weight: 1 g

Scope of Delivery:

• 1× MCP4725 12-bit digital-to-analog converter I2C DAC
• 1× Pin header 6-pin