44.15 Sigma Delta Analog-to-Digital Converter (SDADC)

Table 44-17. Differential Mode ADC Electrical Specifications
AC CHARACTERISTICSStandard Operating Conditions: VDD and VDDIO 2.7V to 5.5V (unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +125°C for Extended Temp

Param. No.SymbolCharacteristicsMin.TypicalMax.UnitsConditions
DIFFERENTIAL MODE ADC Accuracy
DSDADC_31GERR (1,2)Gain Error-909476LSbFTP(max), REFCTRL.REFSEL = 0x3 = VDDANA

VREF = VDDANA = 5.0V

DSDADC_37EOFF (1,2)Offset Error-229169LSbFTP(max), REFCTRL.REFSEL = 0x3 = VDDANA

VREF = VDDANA = 5.0V

Note:
  1. Spec values collected under the following additional conditions:
    • All registers at reset default value otherwise not mentioned
  2. Differential input mode, OSR = 256, SDADC Clock Period = 166.7ns (6 MHz), Chopper OFF (ANACTRL.ONCHOP = 0), REFRANGE[1:0] = 0x3.