I'm using single AD5410 (TSSOP package) current source dac in my application. I'm confused on how to ground the analog & digital ground in my circuit.
the data sheets states two separate ground which are as follows
pin no: 1,4,5,12 - GND - These pins must be connected to ground.
pin no : 11 - GND - Ground Reference Pin.
After going through the literature of " Grounding Data Converters and Solving the Mystery of "AGND" and "DGND" " i understand that if there is a single converter (as in my application) i can connect the grounds at the DAC. But the data sheet doesn't say which is the AGND & Which is DGND.
This is the point at which i'm confused with how to connect the ground.
I'm using a 4 layer PCB in which I have a plane dedicated to ground.
It is divided into two half 1. Anglog GND 2. Digital GND both are isolated.
Input : 24vdc Output : 4-20mA Ground : Common Ground for both input & output.
Looking forward for your immediate reply
Thanks in advance