Shota-san, That is correct. If VREFP=2.5V and VREFN=-2.5V, the VREF=2.5-(-2.5V)=5V and the full scale range of the ADC is ±5V. Also if the customer uses a pseudo-differential input (such as AINN=0V, but AINP can go from -2.5V to +2.5V), then the input seen by the ADC will be ±2.5V of measurement. In that setup, the ADC range is ±5V, but the pseudo-differential input is ±2.5V, and the customer will only see half of the full ADC range. Joseph Wu
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