HI Team: The ADC128S102EVM user manual found on TI.com has several problems, including the bill of materials at the end being incomplete. More problematically, several parts in the BOM have values that conflict with values stated on the schematic.
Customer would like a datasheet so that we can effectively test the ADC. They are using the ADC evaluation module as a standalone device rather than attaching it to another board directly as shown in the user manual. In attempting to test this way, we have also measured spurious output on several of the input parameters. When all of the IN0-6 pins are shorted directly to their associated pins, the ADC board reported over a volt of output from IN0 (multimeter confirmed 0V between the pins) and IN1; IN7, which to my understanding should be the temperature sensor, reported a null value as well…given that we were operating at room temperature, this seems problematic.
-How can we calculate the expected outputs?
-Do we have a faulty EVM?
-Can we provide a datasheet for the ADC EVM? They have a datasheet for the ADC itself, and have been working off of that up until we found the possible hardware fault.
Thanks.