I'm using AD7793 and almost everything is fine, but I have problems with channel 3.
In my application I have to measure all 3 channels sequently. Channels 1 and 2 works great, but not third one. I'am using standard commands for Configuration Register:
0x1080 - unipolar mode, internal reference 1,17V, channel 1 --> ok
0x1081 - unipolar mode, internal reference 1,17V, channel 2 --> ok
0x1082 - unipolar mode, internal reference 1,17V, channel 3 -> I get always 0's
When I try set buffered mode on channel 3 it starts read something, but the result is about 4x lower than it should be.
I read the whole datasheet and I don't know what I'm doing wrong. Is there some special threatment for channel 3? Should I set something more than on the others 2 channels?
Sorry for my english, I hope this post is understandable:)