50.11 DAC Module Electrical Specifications

Table 50-12. DAC Module Electrical Specifications
AC CHARACTERISTICS				Standard Operating Conditions: VDD = AVDD = 1.62V to 3.63V (unless otherwise stated) Operating temperature: -40°C ≤ T_A ≤ +125°C for Extended Temp
Param. No.	Symbol	Characteristics		Min.	Typ.	Max.	Units	Conditions
DAC_5	D_SAMP	DAC Sampling Rate	Low Power (DACCTRLx.CCTRL= 0x0)	0.1	—	0.1	MSPS	+/-4 LSB of final value for step size≤100 LSB @ C_LOAD & R_LOAD w/AVDD = 3.3V
DAC_5	D_SAMP	DAC Sampling Rate	High Power (DACCTRLx.CCTRL= 0x2)	0.1	—	1	MSPS
DIFFERENTIAL MODE^(2,3,6)
DDAC_19	INL	Integral Non Linearity	REFSEL = AVDD CTRLB.REFSEL = 0x1	-2.7	-	2.6	LSB	AVDD = 3.3V w/ C_LOAD & R_LOAD High-Power mode (DACCTRLx.CCTRL= 2) (Maximum sampling rate 1MSPS) A clipping value of 150mV is applied to both RampStart and RampEnd in the DAC Linearity calculation according to DAC_7 parameter.
			REFSEL = VREFAU (2.5V) CTRLB.REFSEL = 0x0	-2.9	-	2.6
			REFSEL = VREFAB (2.5V) CTRLB.REFSEL = 0x2	-2.2	-	2.2
			REFSEL = INTREF (2.4V) CTRLB.REFSEL = 0x3	-5.1	-	5.0
DDAC_21	DNL	Differential Non Linearity	REFSEL = AVDD CTRLB.REFSEL = 0x1	-2.4	-	1.1	LSB
			REFSEL = VREFAU (2.5V) CTRLB.REFSEL = 0x0	-2.7	-	2.9
			REFSEL = VREFAB (2.5V) CTRLB.REFSEL = 0x2	-2.1	-	1.3
			REFSEL = INTREF (2.4V) CTRLB.REFSEL = 0x3	-6.4	-	5.9
DDAC_23	G_ERR	Gain Error	REFSEL = AVDD CTRLB.REFSEL = 0x1	-37.7	-	-18.2	LSB
			REFSEL = VREFAU (2.5V) CTRLB.REFSEL = 0x0	-39.5	-	-16.4
			REFSEL = VREFAB (2.5V) CTRLB.REFSEL = 0x2	-44.5	-	-17.6
			REFSEL = INTREF (2.4V) CTRLB.REFSEL = 0x3	-114.0	-	67.8
DDAC_25	E_OFF	Offset Error	REFSEL = AVDD CTRLB.REFSEL = 0x1	4.9	-	17.4	LSB
			REFSEL = VREFAU (2.5V) CTRLB.REFSEL = 0x0	-3.0	-	19.7
			REFSEL = VREFAB (2.5V) CTRLB.REFSEL = 0x2	-1.4	-	21.8
			REFSEL = INTREF (2.4V) CTRLB.REFSEL = 0x3	-39.3	-	56.3
SINGLE ENDED MODE^(2,3,6)
SDAC_19	INL	Integral Non Linearity	REFSEL = AVDD CTRLB.REFSEL = 0x1	-3.6	-	3.4	LSB	AVDD = 3.3V w/ C_LOAD & R_LOAD High-Power mode (DACCTRLx.CCTRL= 2) (Maximum sampling rate 1MSPS) A clipping value of 150 mV is applied to both RampStart and RampEnd in the DAC Linearity calculation according to the DAC_7 parameter.
			REFSEL = VREFAU (2.5V) CTRLB.REFSEL = 0x0	-5.4	-	5.1
			REFSEL = VREFAB (2.5V) CTRLB.REFSEL = 0x2	-4.7	-	4.5
			REFSEL = INTREF (2.4V) CTRLB.REFSEL = 0x3	-12.3	-	8.2
SDAC_21	DNL	Differential Non Linearity	REFSEL = AVDD CTRLB.REFSEL = 0x1	-3.9	-	2.9	LSB
			REFSEL = VREFAU (2.5V) CTRLB.REFSEL = 0x0	-5.1	-	5.5
			REFSEL = VREFAB (2.5V) CTRLB.REFSEL = 0x2	-3.9	-	3.6
			REFSEL = INTREF (2.4V) CTRLB.REFSEL = 0x3	-13.0	-	11.3
SDAC_23	G_ERR	Gain Error	REFSEL = AVDD CTRLB.REFSEL = 0x1	-45.4	-	-19.1	LSB
			REFSEL = VREFAU (2.5V) CTRLB.REFSEL = 0x0	-48.1	-	-19.8
			REFSEL = VREFAB (2.5V) CTRLB.REFSEL = 0x2	-53.1	-	-20.6
			REFSEL = INTREF (2.4V) CTRLB.REFSEL = 0x3	-120.8	-	62.4
SDAC_25	E_OFF	Offset Error	REFSEL = AVDD CTRLB.REFSEL = 0x1	3.5	-	17.9	LSB
			REFSEL = VREFAU (2.5V) CTRLB.REFSEL = 0x0	4.9	-	23.8
			REFSEL = VREFAB (2.5V) CTRLB.REFSEL = 0x2	8.7	-	30.1
			REFSEL = INTREF (2.4V) CTRLB.REFSEL = 0x3	8.7	-	30.1
Note: Value taken over 7 harmonics. 12-bit mode. Over V_OUT range defined by DAC_7 parameter. Assuming DAC is configured and that first conversion is done. Characterized with 1kHz sine wave. DAC functional device operation with external VREF < 2.4V is guaranteed, but not characterized. DAC will function, but with degraded performance. DAC accuracy is limited by users application noise/accuracy on AVDD, AVSS and VREF accuracy/drift.