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.
Thank you very much for your kind answers for my beginners questions.
I understand what it is and think these 2 channels of AD5162 can be used for our application, but need to check more in detail.
In regards to AD5207, we need I2C interface rather than SPI, because of MCU restriction. So we will look for other parts if need.
BTW, we have other application of digipot for audio volume control. Do you have any specific part can be recommended for these applications ?