We are currently experiencing some problems with the ADS8327 16 Bit 500KSPS Serial ADC.
They work perfectly for a period of time, after a while some of them exhibit small shift in their voltage-to-digital response.
For example - If the input a is a very linear voltage ramp - at some point, the digital output will exhibit a small rapid change (like if one bit was toggeling inappropriately), i.e. shift out of spec, and come back on tracks after a few millivolts increase on the input.
Has anyone already experienced this kind of problem?