Figuring out if the AD5667 I2C DAC is suitable for my project

Hello!

I have been trying to find a moderately priced ADC for my project until i found the AD5667 (Datasheet).

The idea is that i would be using two of these DACs in combination with two ADS1115 ADCs.

On the ninth page of the datasheet of the AD5667 (also the seventh table of the 21st page) it is said that when the address pin is connected to the ground, left unconnected, or connected to the voltage source, the two least significant address bits change. On the ninth table of the 23rd page the datasheet also claims that the output DACs (internal to the AD5667) can be selected with the 3 least significant bits of the address and that has left me wondering, if i will be able to use the DACs with my project.

If there is a way to get the two DACs working together, i suspect there will be no issue to use as the ADC's address' MSBs are 10010 and the DAC's are 00011.

I would greatly appreciate if someone would help me with my confusion!

If you take a look at the timing diagram on page 22 you see that the first byte is always the I2C address which is defined by the address pin. The you write 24 bits (3 bytes) of which the first byte is the command byte. Three bits of it define the action and three bits the target (unfortunately also called address). So there's no collision in your project.