The Microchip MCP4728 device is a quad, 12-bit voltage output Digital-to-Analog Converter (DAC) with non-volatile memory (EEPROM). Its on-board precision output amplifier allows it to achieve rail-to-rail analog output swing.

The DAC input codes, device configuration bits, and I ² C address bits are programmable to the non-volatile memory (EEPROM) by using I ² C serial interface commands. The non-volatile memory feature enables the DAC device to hold the DAC input codes during power-off time, allowing the DAC outputs to be available immediately after power-up with the saved settings. This feature is very useful when the DAC device is used as a supporting device for other devices in applications network.

The Microchip MCP4728 device has a high precision internal voltage reference (VREF = 2.048V). The user can select the internal reference or external reference (VDD) for each channel individually.

• Set Point or Offset Adjustment
• Sensor Calibration
• Closed-Loop Servo Control
• Low Power Portable Instrumentation
• PC Peripherals
• Programmable Voltage and Current Source
• Industrial Process Control
• Instrumentation