SPRZ272N September 2007 – April 2022 SM320F28335-EP , SM320F28335-HT , TMS320F28232 , TMS320F28232-Q1 , TMS320F28234 , TMS320F28234-Q1 , TMS320F28235 , TMS320F28235-Q1 , TMS320F28332 , TMS320F28333 , TMS320F28334 , TMS320F28335 , TMS320F28335-Q1
ADC: Simultaneous Sampling Latency
0, A
When the ADC conversions are initiated in simultaneous mode, the first sample pair will not give correct conversion results.
1. If the ADC is used with a sampling window ≤ 160 nS, then the first sample pair must be discarded and a second sample of the same pair must be taken. For instance, if the sequencer is set to sample channel A0:B0/A1:B1/A2:B2 in that order, then load the sequencer with A0:B0/A0:B0/A1:B1/A2:B2 and only use the last three conversions.
2. If the ADC is used with a sampling window greater than 160 ns, there is no issue.