SAM D21/DA1 Family

39.6.5 Digital to Analog Converter (DAC) Characteristics

Table 39-19. Operating Conditions⁽¹⁾(Device Variant A)
Symbol	Parameter	Conditions	Min.	Typ.	Max.	Units
V_DDANA	Analog supply voltage	-	1.62	-	3.63	V
AV_REF	External reference voltage	-	1.0	-	V_DDANA-0.6	V
	INT1V⁽³⁾	-	-	1	-	V
	VDDANA	-	-	V_DDANA	-	V
	Linear output voltage range	-	0.05	-	V_DDANA-0.05	V
	Minimum resistive load	-	5	-	-	kΩ
	Maximum capacitance load	-	-	-	100	pF
I_DD	DC supply current⁽²⁾	Voltage pump disabled	-	160	242	μA

Table 39-20. Operating Conditions⁽¹⁾(Device Variant B, C, D and L)
Symbol	Parameter	Conditions	Min.	Typ.	Max.	Units
V_DDANA	Analog supply voltage	-	1.62	-	3.63	V
AV_REF	External reference voltage	-	1.0	-	V_DDANA-0.6	V
	INT1V⁽³⁾	-	-	1	-	V
	VDDANA	-	-	V_DDANA	-	V
	Linear output voltage range	-	0.05	-	V_DDANA-0.05	V
	Minimum resistive load	-	5	-	-	kΩ
	Maximum capacitance load	-	-	-	100	pF
I_DD	DC supply current⁽²⁾	Voltage pump disabled	-	160	283	μA

Note:

These values are based on specifications otherwise noted.
These values are based on characterization, and are not covered by test limits in production.
It is the buffered internal reference of 1.0V derived from the internal 1.1V bandgap reference.

Table 39-21. Clock and Timing⁽¹⁾
Symbol	Parameter	Conditions		Min.	Typ.	Max.	Units
	Conversion rate	C_load = 100 pF R_load > 5 kΩ	Normal mode	-	-	350	ksps
	Conversion rate	C_load = 100 pF R_load > 5 kΩ	For Δ_DATA = +/-1	-	-	1000	ksps
	Startup time	V_DDNA > 2.6V		-	-	2.85	μs
	Startup time	V_DDNA < 2.6V		-	-	10	μs

Note:

These values are based on simulation, and are not covered by test limits in production or characterization.

Table 39-22. Accuracy Characteristics⁽¹⁾(Device Variant A)
Symbol	Parameter	Conditions		Min.	Typ.	Max.	Units
RES	Input resolution	-		-	-	10	Bits
INL	Integral non-linearity	V_REF = Ext 1.0V	V_DD = 1.6V	0.75	1.1	2.0	LSB
		V_REF = Ext 1.0V	V_DD = 3.6V	0.6	1.2	2.5
		V_REF = V_DDANA	V_DD = 1.6V	1.4	2.2	3.5
		V_REF = V_DDANA	V_DD = 3.6V	0.9	1.4	1.5
		V_REF = INT1V	V_DD = 1.6V	0.75	1.3	2.5
		V_REF = INT1V	V_DD = 3.6V	0.8	1.2	1.5
DNL	Differential non-linearity	V_REF = Ext 1.0V	V_DD = 1.6V	+/-0.9	+/-1.2	+/-2.0	LSB
		V_REF = Ext 1.0V	V_DD = 3.6V	+/-0.9	+/-1.1	+/-1.5
		V_REF = V_DDANA	V_DD = 1.6V	+/-1.1	+/-1.7	+/-3.0
		V_REF = V_DDANA	V_DD = 3.6V	+/-1.0	+/-1.1	+/-1.6
		V_REF = INT1V	V_DD = 1.6V	+/-1.1	+/-1.4	+/-2.5
		V_REF = INT1V	V_DD = 3.6V	+/-1.0	+/-1.5	+/-1.8
GE	Gain error	Ext. V_REF		+/-1.0	+/-5	+/-10	mV
OE	Offset error	Ext. V_REF		+/-2	+/-3	+/-8	mV

Table 39-23. Accuracy Characteristics⁽¹⁾(Device Variant B, C, D and L)
Symbol	Parameter	Conditions		Min.	Typ.	Max.	Units
RES	Input resolution	-		-	-	10	Bits
INL	Integral non-linearity	V_REF = Ext 1.0V	V_DD = 1.6V	0.7	0.75	2.0	LSB
		V_REF = Ext 1.0V	V_DD = 3.6V	0.6	0.65	1.5
		V_REF = V_DDANA	V_DD = 1.6V	0.6	0.85	2.0
		V_REF = V_DDANA	V_DD = 3.6V	0.5	0.8	1.5
		V_REF = INT1V	V_DD = 1.6V	0.5	0.75	1.5
		V_REF = INT1V	V_DD = 3.6V	0.7	0.8	1.5
DNL	Differential non-linearity	V_REF = Ext 1.0V	V_DD = 1.6V	+/-0.3	+/-0.4	+/-1.0	LSB
		V_REF = Ext 1.0V	V_DD = 3.6V	+/-0.25	+/-0.4	+/-0.75
		V_REF = V_DDANA	V_DD = 1.6V	+/-0.4	+/-0.55	+/-1.5
		V_REF = V_DDANA	V_DD = 3.6V	+/-0.2	+/-0.3	+/-0.75
		V_REF = INT1V	V_DD = 1.6V	+/-0.5	+/-0.7	+/-1.5
		V_REF = INT1V	V_DD = 3.6V	+/-0.4	+/-0.7	+/-1.5
GE	Gain error	Ext. V_REF		+/-0.5	+/-5	+/-12	mV
OE	Offset error	Ext. V_REF		+/-2	+/-1.5	+/-8	mV

Note:

All values measured using a conversion rate of 35 ksps.

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