Part Number: ADS8634
Hello,
I am using your ADC and have ran into an issue where the data out from it is incorrect periodically.
I am using channels 0-2 in auto mode with the 0-5V internal reference. The input signal is normally at 2.5V, with a few LSBs of fluctuation.
Most of the time a valid ADC reading of 0x800 +/- a few LSBS, with the correct channel data preceding the ADC data is received.
However the ADC sometimes outputs incorrect data as shown below.
(Yellow = CLK, Blue = MISO)
As can be seen there is no issue with the clock signal input to the device, so there is no reason for the output data to be toggled at the point that it is.
The high peaks and ringing on the signals have been confirmed to be a result of the probing setup (longer leads with crocodile clips) and are absent when probed with a proper ground spring setup.
A close up of the above signal.
Thank you for your help,
Jamie