Hello
Sorry i can not write english well.maybe it makes some misconceive.
You can see in schematic that i use separatly 9 VDC power suply for the LT1021 input.
I did what you said" the output of the LT1021 is connected to one point only."
Now i want to activate CH0 & CH1, in whitch 0 to 16777216 output became available, then i can check this new changes in the circuit with results.