{"title":"Gravity: I2C 12-Bit DAC Module","handle":"gravity-i2c-12-bit-dac-module","url":"/products/gravity-i2c-12-bit-dac-module","description":"The DFRobot Gravity 12-Bit I2C DAC Module is a compact digital-to-analogue converter based on the MCP4725 chip. It accurately converts digital values to precise analogue voltage signals, providing far cleaner output than PWM-based approaches from microcontrollers.\n\nWith on-board EEPROM, the module retains its last DAC setting during power-off and automatically resumes output on power-up. An I2C address selection switch allows two modules to operate on the same bus (0x60 and 0x61). The included library supports generating sine, triangular, and arbitrary waveforms with just a few parameters.\n\nKey Features\n\n\n12-Bit Resolution – Accurate analogue output from 0 V to VCC\n\nOn-Board EEPROM – Retains DAC value during power-off for seamless resume\n\nWide Voltage Support – Compatible with both 3.3 V and 5 V controllers\n\nGravity I2C Interface – Plug-and-play connector with XH2.54 4-pin header for expansion\n\nDual Address Selection – Switch between 0x60 and 0x61 for cascading two modules\n\nWaveform Generation – Built-in library functions for sine, triangular, and arbitrary waveforms\n\nUltra-Low Power – Working current under 0.2 mA\n\n\nSpecifications\n\n\nDAC Chip – MCP4725\n\nInput Voltage (VCC) – 3.3–5.0 V\n\nOutput Voltage – 0 V to VCC\n\nResolution – 12-bit\n\nWorking Current – <0.2 mA\n\nInterface – Gravity I2C (logic level: 0–3.3 V)\n\nI2C Addresses – 0x60, 0x61 (selectable via switch)\n\nDimensions – 27 × 22 mm\n\nWeight – 13.8 g\n\n\nIdeal For\n\nSensor calibration and testing\nAutomatic control systems\nFunction and waveform generation\nPrecise voltage reference applications\nArduino and Raspberry Pi projects requiring clean analogue output\n\n\nResources\n\nProduct Wiki & Documentation\n","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":5603,"title":"Default Title","sku":"DF-DFR0552","price":8.3,"on_sale":false,"in_stock":true,"available_quantity":192,"option1":"Default Title"}]}