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

Table 44-17. Differential Mode ADC Electrical Specifications
AC CHARACTERISTICS			Standard 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.	Symbol	Characteristics	Min.	Typical	Max.	Units	Conditions
DIFFERENTIAL MODE ADC Accuracy
DSDADC_31	GERR^(1,2)	Gain Error	-909	—	476	LSb	FTP(max), REFCTRL.REFSEL = 0x3 = VDDANA VREF = VDDANA = 5.0V
DSDADC_37	EOFF ^(1,2)	Offset Error	-229	—	169	LSb	FTP(max), REFCTRL.REFSEL = 0x3 = VDDANA VREF = VDDANA = 5.0V
Note: Spec values collected under the following additional conditions: All registers at reset default value otherwise not mentioned Differential input mode, OSR = 256, SDADC Clock Period = 166.7ns (6 MHz), Chopper OFF (ANACTRL.ONCHOP = 0), REFRANGE[1:0] = 0x3.