AD5422 Datasheet error?

In the datasheet of the DAC AD5422/5412, page 11 the Absolute Maximum Rating for IOUT to GND says -0.3V...AVDD. However, in all examples (e.g. in Fig. 82) the IOUT is clamped against AVSS. Moreover, when the IOUT and the  VOUT pins are connected together the IOUT pin will exposed to negative voltages as well. Is this an error in the Absolute Maximum Ratings?