40.13 Analog-to-Digital Controller (ADC) Electrical Specifications

Table 40-15. ADC Single Ended Mode AC 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.	Typ.	Max.	Units	Conditions
Single Ended Mode ADC Accuracy⁽⁴⁾
SADC_13a	ENOB^{(1, 2, 4)}	Effective Number of bits	9.3	—	—	bits	1 Msps, REFCTRL.REFSEL = 0x5 = AVDD VREF = AVDD= 5.0V
SADC_13b			9.3	—	—	bits	1 Msps, REFCTRL.REFSEL = 0x5 = AVDD VREF = AVDD = 3.3V
SADC_13c			9.3	—	—	bits	1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin AVDD = 5.0V VREF = VREFA = 3.0V
SADC_19c	INL⁽⁴⁾	Integral Nonlinearity	-4.5	—	4.5	LSB	1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin AVDD = 5.0V VREF = VREFA = 3.0V SAMPCTRL.OFFCOMP = 0 and SAMPCTRL.REFCOMP = 0, SAMPCTRL.SAMPLEN[5:0] = 3
SADC_31a	GERR⁽⁴⁾	Gain Error	-16.0	—	4.32	LSB	1 Msps, REFCTRL.REFSEL = 0x5 = AVDD VREF = AVDD = 5.0V SAMPCTRL.OFFCOMP = 0, SAMPCTRL.SAMPLEN[5:0] = 3
SADC_31b			-18.0	—	7	LSB	1 Msps, REFCTRL.REFSEL = 0x5 = AVDD VREF = AVDD = 3.3V SAMPCTRL.OFFCOMP = 0, SAMPCTRL.SAMPLEN[5:0] = 3
SADC_31c			-40.1	—	25.17	LSB	1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin AVDD = 5.0V VREF = VREFA = 3.0V SAMPCTRL.OFFCOMP = 0 and SAMPCTRL.REFCOMP = 0, SAMPCTRL.SAMPLEN[5:0] = 3
SADC_31d			-289.6	—	131.2	LSB	1 Msps, REFCTRL.REFSEL = 0x0 = INTREF AVDD = 5.0V Internal VREF = INTREF = 4.096V SAMPCTRL.OFFCOMP = 0 and SAMPCTRL.REFCOMP = 0, SAMPCTRL.SAMPLEN[5:0] = 3
SADC_37a	EOFF⁽⁴⁾	Offset Error	-53	—	58	LSB	1 Msps, REFCTRL.REFSEL = 0x5 = AVDD VREF = AVDD = 5.0V SAMPCTRL.OFFCOMP = 0, SAMPCTRL.SAMPLEN[5:0] = 3
SADC_37b			-50	—	62	LSB	1 Msps, REFCTRL.REFSEL = 0x5 = AVDD VREF = AVDD = 3.3V SAMPCTRL.OFFCOMP = 0, SAMPCTRL.SAMPLEN[5:0] = 3
SADC_37c			-53	—	66	LSB	1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin AVDD = 5.0V VREF = VREFA = 3.0V SAMPCTRL.OFFCOMP = 0 and SAMPCTRL.REFCOMP = 0, SAMPCTRL.SAMPLEN[5:0] = 3
SADC_37d			-51	—	62	LSB	1 Msps, REFCTRL.REFSEL = 0x0 = INTREF AVDD = 5.0V Internal VREF = INTREF = 4.096V SAMPCTRL.OFFCOMP = 0 and SAMPCTRL.REFCOMP = 0, SAMPCTRL.SAMPLEN[5:0] = 3
Single Ended Mode ADC Dynamic Performance^(1,2,4)
SADC_53b	SFDR^{(1, 2, 4)}	Spurious Free Dynamic Range	64	—	—	LSB	1 Msps, REFCTRL.REFSEL = 0x5 = AVDD VREF = AVDD = 3.3V
SADC_53c	SFDR^{(1, 2, 4)}	Spurious Free Dynamic Range	62	—	—		1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin AVDD = 5.0V VREF = VREFA = 3.0V
SADC_55a	THD^(1,2,3,4)	Total Harmonic Distortion	—	—	-62		1 Msps, REFCTRL.REFSEL = 0x5 = AVDD VREF = AVDD = 5.0V
SADC_55b	THD^(1,2,3,4)	Total Harmonic Distortion	—	—	-62		1 Msps, REFCTRL.REFSEL = 0x5 = AVDD VREF = AVDD = 3.3V
Note: Characterized with an analog input sine wave = (FTP(max) / 100). For example, FTP(max) = 1 Msps / 100 = 10 kHz sine wave. Sine wave peak amplitude = 96% ADC_ Full Scale amplitude input with 12-bit resolution. Value taken over 7 harmonics. ADC is configured in 12 bits mode, All registers are at the reset default value unless otherwise stated.

Table 40-16. ADC Differential Mode AC 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.	Typ.	Max.	Units	Conditions
Differential Mode ADC Accuracy⁽⁴⁾
DADC_13a	ENOB^{(1, 2, 4)}	Effective Number of bits	10.4	—	—	bits	1 Msps, REFCTRL.REFSEL = 0x5 = AVDD VREF = AVDD = 5.0V
DADC_13c	ENOB^{(1, 2, 4)}	Effective Number of bits	10.3	—	—	bits	1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin AVDD = 5.0V VREF = VREFA = 3.0V
DADC_19c	INL⁽⁴⁾	Integral Nonlinearity	-2.3	—	2.3	LSB	1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin AVDD = 5.0V VREF = VREFA = 3.0V SAMPCTRL.OFFCOMP = 1 and SAMPCTRL.REFCOMP = 1
DADC_31a	GERR⁽⁴⁾	Gain Error	-3.5	—	6	LSB	1 Msps, REFCTRL.REFSEL = 0x5 = AVDD VREF = AVDD = 5.0V SAMPCTRL.OFFCOMP = 1.
DADC_31b			-6.0	—	8.0	LSB	1 Msps, REFCTRL.REFSEL = 0x5 = AVDD VREF = AVDD = 3.3V SAMPCTRL.OFFCOMP = 1
DADC_31c			-31.1	—	31.4	LSB	1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin AVDD = 5.0V VREF = VREFA = 3.0V SAMPCTRL.OFFCOMP = 1 and SAMPCTRL.REFCOMP = 1
DADC_31d			-278.3	—	132.7	LSB	1 Msps, REFCTRL.REFSEL = 0x0 = INTREF AVDD = 5.0V Internal VREF = INTREF = 4.096V SAMPCTRL.OFFCOMP = 1 and SAMPCTRL.REFCOMP = 1
DADC_37a	EOFF⁽⁴⁾	Offset Error	-6.0	—	7.0	LSB	1 Msps REFCTRL.REFSEL = 0x5 = AVDD VREF = AVDD = 5.0V SAMPCTRL.OFFCOMP = 1.
DADC_37b			-8.0	—	9.0	LSB	1 Msps, REFCTRL.REFSEL = 0x5 = AVDD VREF = AVDD = 3.3V SAMPCTRL.OFFCOMP = 1
DADC_37c			-9.0	—	13.0	LSB	1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin AVDD = 5.0V VREF = VREFA = 3.0V SAMPCTRL.OFFCOMP = 1 and SAMPCTRL.REFCOMP = 1
DADC_37d			-7.0	—	10.0	LSB	1 Msps, REFCTRL.REFSEL = 0x0 = INTREF AVDD = 5.0V Internal VREF = INTREF = 4.096V SAMPCTRL.OFFCOMP = 1 and SAMPCTRL.REFCOMP = 1
DADC_43c	TUE⁽⁴⁾	Total Unadjusted Error	2.1	—	11.2	LSB	1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin AVDD = 5.0V VREF = VREFA = 3.0V SAMPCTRL.OFFCOMP = 1 and SAMPCTRL.REFCOMP = 1
Differential Mode ADC Dynamic Performance^(1,2,4)
DADC_53b	SFDR^{(1, 2, 4)}	Spurious Free Dynamic Range	70	—	—	LSB	1 Msps, REFCTRL.REFSEL = 0x5 = AVDD VREF = AVDD = 3.3V
DADC_53c			68	—	—		1 Msps REFCTRL.REFSEL = 0x3 = VREFA pin AVDD = 5.0V VREF = VREFA = 3.0V
DADC_53d			68	—	—		1 Msps, REFCTRL.REFSEL = 0x0 = INTREF AVDD = 5.0V Internal VREF = INTREF = 4.096V
Note: Characterized with an analog input sine wave = (FTP(max) / 100). For example, FTP(max) = 1 Msps / 100 = 10 kHz sine wave. Sine wave peak amplitude = 96% ADC_ Full Scale amplitude input with 12-bit resolution. Value taken over 7 harmonics. ADC is configured in 12 bits mode, All registers are at the reset default value unless otherwise stated.