MCP4725A3: 12-Bit I2C Digital-to-Analog Converter with EEPROM Memory12-Bit Resolution
On-Board Non-Volatile Memory (EEPROM)
▒0.2 LSB DNL (typical)
External A0 Address Pin
Normal or Power-Down Mode
Fast Settling Time of 6 Ás (typical)
External Voltage Reference (VDD)
Low Power Consumption
Single-Supply Operation: 2.7V to 5.5V
Notice the extension which determines the addressbits (check the datasheet)!
The MCP4725 is a low-power, high accuracy, single channel, 12-bit buffered voltage output Digital-to-Analog Convertor (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 and configuration data can be programmed to the non-volatile memory (EEPROM) by the user using I2C interface command. The non-volatile memory feature enables the DAC device to hold the DAC input code during power-off time, and the DAC output is available immediately after power-up.