Hi,
I'm using ADS8686S to get some sensers signals and there is problem I'm a little confused.
I don't know how to use the function of PGA refered in the datasheet.
I choose hardware mode, and set HW_RANGESEL[1:0]=01 [-2.5v, 2.5v].
Does the different ranges(2.5v, 5v, 10v) of input mean programmable?
By the way, if I set the input range as [-2.5v, 2.5v], the range of output data[15:0] is from 0x0000 to 0xffff.
0x0000~0x0fff: 0 ~ +2.5v
0x8000~0xffff: 0 ~ -2.5v
Is this right?
Waiting for your reply,thank you very much!
Best regards,
Sarah