Voltage divider temperature coefficient of AD5270

I'm choosing a digital potentiometer. There are two candidates now, one is AD5270, another is AD5293. In AD5293's data sheet it clearly state it's "Voltage divider temperature coefficient" is 5 ppm/°C. But this parameter is absent in AD5270's data sheet. So what value we can expect for it's voltage divider temperature coefficient?

Thanks.