I am wanting to use the AD7787 for reading two single-ended signals, but one of the inputs is a differential input.  I am guessing I can tie the - signal to ground and simply drive the + input with my single-ended voltage.  i am hoping that by doing that I will have two inputs that are equivalent.  I will be using a 4.096v reference and my input range will be 0-4.096v.  Does anyone know if I am on the right track please?