The MCP4725 DAC Module is a digital-to-analog converter (DAC) module commonly used in electronic projects to convert digital values into analogue signals. It’s widely employed in applications like audio processing, motor control, and sensor interfacing.
The CJMCU-MCP4725 is an I2C controlled Digital-to-analogue converter (DAC). A DAC allows you to send analogue signals, such as a sine wave, from a digital source, such as the I2C interface on the Arduino microcontroller. Digital analogue converters are great for sound generation, musical instruments, and many other creative projects.
This version of the CJMCU-MCP4725 Breakout fixes a few issues with the board including the IC footprint, the I2C pinout, changes in the overall board dimensions to better fit your projects, and a few more minor tweaks. This board breaks out each pin you will need to access and use the MCP4725 including GND and Signal OUT pins for connecting to an oscilloscope or any other device you need to hook up to the board. Also on board are SCL, SDA, VCC, and another GND for your basic I2C pinout.
The MCP4725 module converts digital values (usually from a microcontroller) into corresponding analogue voltage or current signals. The MCP4725 DAC Module provides an adjustable output voltage range, allowing you to set the desired range according to your application requirements.
It usually communicates with a microcontroller via an I2C (Inter-Integrated Circuit) interface, which allows for easy integration into digital systems. The module itself requires a power supply voltage for its internal circuitry, which is usually within a 2.7V to 5.5V range.
These modules often have specifications for accuracy and linearity, indicating how closely the analogue output matches the digital input. MCP4725 DAC Modules are widely used in projects involving audio equipment, instrumentation, waveform generation, motor control, and other applications that require precise analogue voltage or current output.
The first thing to point out is the pinout on this breakout now conforms to the standard I2C pinout we’ve started using on most devices that use the two-wire interface. Thus, it is easy to solder some headers on the breakout and plug it directly into an Arduino with the same pinout for the I2C pins. There is also the signal out and a GND pin grouped together to connect to an oscilloscope or whatever other device you’re hooking up to the breakout.
A few features have been added to this breakout to give the user more flexibility with the IC, particularly when it comes to adding multiple DACs to one bus. First, we’ve broken out the address selection pin (A0) to a jumper pad. By default, this pin is pulled LOW to GND. To change the address of your other device, simply de-solder the jumper and add a blob of solder to the middle pad and the Vcc pad.
Specifications
Input Supply Voltage: 2.7 ~ 5.5V DC
Interface Type: I2C
Resolution: 12-Bits
Features
Fine-Tuned Analog Outputs-
The DAC Module is engineered to provide precise analogue outputs for your projects. Whether you’re working on audio equipment, sensor calibration, or other applications requiring accurate voltage levels, this module ensures exceptional performance.
High Resolution, Low Noise-
With its high resolution and low noise design, the module offers fine-grained control over your analogue signals. Experience clear, interference-free outputs for applications demanding the utmost precision.
Seamless Integration-
Featuring clear pin labels and comprehensive documentation, the DAC Module is designed for easy integration. Whether you’re an experienced developer or just starting out, you’ll appreciate the simplicity and efficiency it brings to your analogue output projects.
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