The data sheet for the DRV8301 states that the vo_bias with zero input current is 0.5 X Vref +/-0.5%. In our application Vref = 4.952 volts (pin 24). With zero current SO1 (pin 25) reads 2.573 volts (+ 3.9%). With zero current SO2 (pin 26) reads 2.568 volts (+ 3.7%). Is the data sheet incorrect with error of 0.5%? IF not what are the possible explanations? We get similar readings in calibration mode and different gain settings. mike