Re: AD7656 reference error question

Hey Rob,

We're in the process of rolling the board and have decided that we want to change the reference voltage for the AD7656-1 to accommodate the less than rail-to-rail operation of our opamps. We are thinking that  a 2.00V reference is a better fit. That datasheet for the AD7656-1 specifies the "Reference Input Voltage Range" to be : 2.5 min, 2.5 max. I'm assuming this is incorrect and an external  2.00V reference will work OK for a +/-4V input range, but just want to make sure.

Thanks