4/23/2024 0 Comments Arduino mega 2560 dac pin![]() Here, an output value of 0 is zero and an output value of 4,095 is full-scale, where the full-scale value is determined by the reference voltage supplied to the VCC pin. Because it’s a 12-bit DAC, it will accept up to 4,096 possible inputs to provide an analog output. Regarding power requirements, MCP4725 will draw no more than 0.4 mA from the power source with zero load at the output and supply less than 25 mA to a load. Also note that the voltage at the VCC pin is used as the supply input as well as the DAC reference input, so the power supply at the VCC pin should be as clean as possible for good DAC performance! ![]() It’s found that the default I 2C address of the module introduced here is 0 x 60 (A0 = 0, A1 = 0, A2 = 0). The A0 pin can be connected to VCC or GND or actively driven by digital logic levels. The A2 and A1 bits are hard-wired during manufacturing, and the A0 bit is determined by the logic state of the user-configurable A0 pin. According to the official datasheet, the device address contains four fixed bits (device code = 1100) and three address bits (A2, A1, A0). The inexpensive module (shown above) provides easy access to the MCP4725 12-bit DAC. The nifty MCP4725 chip could be a promising solution in such situations! Yes, your Arduino has ADC and PWM, but if you need a true analog output, you should add analog capability to your Arduino board with the help of an external DAC. As the chip is available in an SOT-23-6 package, it’s somewhat difficult for an average electronics hobbyist to solder and play with, but pre-wired DAC modules are now available with affordable price tags. ![]() This is an introduction to a single-channel, 12-bit, buffered voltage output digital-to-analog converter (DAC) with integrated EEPROM and an I 2C compatible serial interface - the MCP4725 from Microchip. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |