**Part Number:**ADS122U04

Hello,

I have a question regarding ADC gain in the ADS122U04. In our system we are taking a single ended measurement using a gain of 2 and a vref of 2.048V. I am using the equation LSB = (2 x vref / gain) / 2^24, and then multiplying this by the ADC code to get my result in volts. However, my result in volts appears to be the pre-gain voltage. For example, when i have 0.35V on the input to the ADC, my software reads the voltage as 0.35V not 0.7V. Should it be 0.7V or have i misunderstood the data sheet?

Furthermore, to achieve higher resolution, would using a 2.5V reference and a gain of 4 improve performance if my maximum voltage on the input is 0.6V?

Any help is appreciated.

Kind regards