In the datasheet of AD5162, we can see 2ch, and first channel is shown by A1/W1/B1, but second channel only shows W2 and B2 and none for "A2". There is no pin assigned to "A2" in pin assignment.
How should I think about A terminal for this second channel ? Is it shared with other pins or A1 pin ?
Sorry to this fundamentals, but your helps would be very muchappreciated.
The AD5162 has a channel for potentiometer mode and one for rheostat mode (No A terminal).
This article shows the differences between rheostat and potentiometer mode:
If you are interested in a dual channel potentiometer have a look at the AD5207 digiPOT