I am using the ADT7470 and the TMP05 in a daisy chain configuration and there are five sensors. I get temperature readings that intermittently vary by huge amounts and then return back to the expected temperature.
Please refer the attached documents for more details.
Block diagram - ADT7470_TMP05_Block_Diagram.pdf
Problem Report - ADI Enginnering Zone.pdf
Circuit diagram - TMP05 Daisy Chain Temperature Sensors.PDF