Перевести. the core of the adc contains a single 12-bit converter fed by two sample-and-hold circuits. the sample and hold circuits can be sampled simultaneously or sequentially. these, in turn, are fed by a total of up to 13 analog input channels. the converter can be configured to run with an internal bandgap reference to create true-voltage based conversions or with a pair of external voltage references (vrefhi/vreflo) to create ratiometric-based conversions.