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12-bit quad DAC integrates EEPROM

Targeting battery powered and power-constrained applications, Microchip has debuted a 12bit quad digital-to-analog converter (DAC) that includes non-volatile EEPROM, enabling the DAC's configuration to be loaded automatically during power-up.

Through the integrated I2C serial interface, designers can configure the MCP4728 DAC's input codes, configuration bits and I2C address bits. This configuration information is stored in the non-volatile EEPROM and therefore retained after power is removed, making it available immediately after power is reapplied and reconfiguring the DAC during power-up.

According to Microchip, the MCP4728's architecture enables each of the four channels to be shut down individually, reducing standby current to as low as 40nA ” the level of power consumption that today's battery powered and power-constrained applications now typically require. The device operates from a single 2.7V to 5.5V
supply voltage.

The MCP4728 DAC is available in a 10-pin MSOP package and there is an accompanying evaluation board – the MCP4728EV – to help designers evaluate the MCP4728 DAC in their applications. For further information, visit Microchip’s website.

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