SAM D21/DA1 Family

40.9.4 Digital to Analog Converter (DAC) Characteristics

Table 40-30. Operating Conditions⁽¹⁾
Symbol	Parameters	Conditions	Min.	Typ.	Max.	Unit
V_DDANA	Analog supply voltage	-	2.7	-	3.63	V
A_VREF	External reference voltage	-	1	-	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	-	-	kW
	Maximum capacitance load	-	-	-	100	pF
I_DD	DC supply current⁽²⁾	Voltage pump disabled	-	160	290	µA

Note:

These values are based on specifications otherwise noted.
These values are based on characterization. These values 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 40-31. Clock and Timing⁽¹⁾
Parameter	Conditions		Min.	Typ.	Max.	Units
Conversion rate	C_LOAD=100pF R_LOAD > 5kΩ	Normal mode	-	-	350	ksps
Conversion rate	C_LOAD=100pF R_LOAD > 5kΩ	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. These values are not covered by test limits in production or characterization.

Table 40-32. **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	VDD = 2.7V	-	1.2	1.5	LSB
		V_REF = Ext 1.0V	VDD = 3.6V	-	1.2	1.5
		V_REF = V_DDANA	VDD = 2.7V	-	1.4	1.5
		V_REF = V_DDANA	VDD = 3.6V	-	1.4	1.5
		V_REF = INT1V	VDD = 2.7V	-	1.2	2
		V_REF = INT1V	VDD = 3.6V	-	1.2	2
DNL	Differential non-linearity	V_REF = Ext 1.0V	VDD = 2.7V	-	+/-1.2	+/-1.6	LSB
		V_REF = Ext 1.0V	VDD = 3.6V	-	+/-1.1	+/-1.5
		V_REF = V_DDANA	VDD = 2.7V	-	+-1.3	+/-1.9
		V_REF = V_DDANA	VDD = 3.6V	-	+/-1.1	+/-1.6
		V_REF = INT1V	VDD = 2.7V	-	+/-1.4	+/-3
		V_REF = INT1V	VDD = 3.6V	-	+/-1,5	+/-3
GE	Gain error	Ext. V_REF	-	-	+/-5	+/-28	mV
OE	Offset error	Ext. V_REF	-	-	+/-3	+/-14	mV

Table 40-33. Accuracy Characteristics⁽¹⁾ (Device Variant B and D)
Symbol	Parameter	Conditions		Min.	Typ.	Max.	Units
RES	Input resolution	-	-	-	-	10	Bits
INL	Integral non-linearity	V_REF = Ext 1.0V	VDD = 2.7V	-	0.75	1.5	LSB
		V_REF = Ext 1.0V	VDD = 3.6V	-	0.65	1.5
		V_REF = V_DDANA	VDD = 2.7V	-	0.85	1.5
		V_REF = V_DDANA	VDD = 3.6V	-	0.8	1.5
		V_REF = INT1V	VDD = 2.7V	-	0.8	2
		V_REF = INT1V	VDD = 3.6V	-	0.8	3
DNL	Differential non-linearity	V_REF = Ext 1.0V	VDD = 2.7V	-	+/-0.4	+/-1
		V_REF = Ext 1.0V	VDD = 3.6V	-	+/-0.4	+/-1
		V_REF = V_DDANA	VDD = 2.7V	-	+/-0.55	+/-1.0
		V_REF = V_DDANA	VDD = 3.6V	-	+/-0.3	+/-0.75
		V_REF = INT1V	VDD = 2.7V	-	+/-0.7	+/-3
		V_REF = INT1V	VDD = 3.6V	-	+/-0.7	+/-3
GE	Gain error	Ext. V_REF	-	-	+/-4	+/-16	mV
OE	Offset error	Ext. V_REF	-	-	+/-1	+/-13	mV

Note:

All values measured using a conversion rate of 35ksps.

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