Digital to Analog Converter MCP4725 (12 bit DAC)

Overview

The MCP4725 is a high-performance, 12-bit Digital-to-Analog Converter (DAC) with an I2C interface, designed to add true analog output to your digital projects. Whether you're working with an Arduino, Raspberry Pi, ESP32, or any other microcontroller, the MCP4725 allows you to generate precise, stable analog voltages with a resolution of 4096 steps. This tiny breakout board is a must-have for makers, students, and engineers who need to control analog devices, create audio signals, or fine-tune sensor outputs.

Key Features

• 12-Bit Resolution: Provides 4096 discrete output levels for smooth, precise analog signals.
• I2C Interface: Simple 2-wire communication (SDA/SCL) works with most microcontrollers.
• On-Board Non-Volatile Memory: Stores the output voltage setting in EEPROM, so it retains the value after power-off.
• Rail-to-Rail Output: Output voltage can swing from 0V to VCC (typically 2.7V to 5.5V).
• Small Form Factor: Compact breakout board easily integrates into breadboards and projects.
• Low Power Consumption: Ideal for battery-powered applications.
• Configurable Address: 6 address pins allow up to 8 devices on the same I2C bus.

Technical Specifications

• Resolution: 12-bit (4096 steps)
• Interface: I2C (up to 3.4 MHz)
• Output Voltage Range: 0V to VCC (VCC range: 2.7V to 5.5V)
• Supply Voltage: 2.7V - 5.5V
• Settling Time: 6 µs (typical)
• On-Board EEPROM: Yes (non-volatile)
• Address Pins: 6 (A0-A5), allowing up to 8 devices per bus
• Package: Breakout board with standard 0.1" header pins

Applications & Use Cases

• Audio Generation: Produce simple waveforms (sine, square, etc.) for sound effects or music.
• Motor Control: Provide analog control signals for servo motors or DC motor drivers.
• Display Brightness Control: Adjust backlight or LED brightness with smooth transitions.
• Sensor Calibration: Generate precise reference voltages for analog sensors.
• Function Generators: Build a simple, programmable signal generator.
• Analog Simulation: Emulate analog signals for testing and prototyping.

What's Included

• 1 x MCP4725 12-Bit DAC Breakout Board
• 1 x Pin Header Strip (may require soldering)

Compatibility

• Arduino (Uno, Mega, Nano, etc.)
• Raspberry Pi (any model with I2C)
• ESP32, ESP8266
• STM32 and other microcontrollers
• Works with any I2C-capable platform

MOKWN Recommendation

Whether you're a hobbyist or a professional, the MCP4725 is an essential component for any electronics toolkit. Its ease of use, high precision, and versatility make it perfect for a wide range of applications. Add it to your cart today and unlock the power of true analog output in your projects!