Oh, Thanks GOD. Finally I got good readings.
I have used 10ohm resister in between AVDD & DVDD. I just short circuit the two pins and now I can get good readings. Thanks dlath, I saw your suggestion to some previous post.
Now I am getting following readings.
I/P current BIRMS
no load 4100
0.247 A 7010
0.71 A 16150
1.896 A 41720
3.72 A 81490
5.54 A 12130
7.23 A 158450
Itest= 7.23A, Imin= 7010
BIRMOS = -1216 which is below 12 bit resolution
These are really good readings, but I got xVRMSOS = -13, whereas xIRMSOS is -1216. The big difference is drawing my attention. Can you please explain.