Datasheet

1140
SAM4S Series [DATASHEET]
11100F–ATARM–29-Jan-14
44.9 12-bit DAC Characteristics
External voltage reference for DAC is V
ADVREF
. See the ADC voltage reference characteristics in Table 44-37 on page
1132.
Note: DAC Clock (f
DAC) = 5 MHz, f
S
= 200kHz, IBCTL = 01.
Table 44-53. Analog Power Supply Characteristics
Symbol Parameter Conditions Min Typ Max Units
V
VDDIN
Analog
Supply
2.4 3.0 3.6 V
I
VDDIN
Current
Consumption
Sleep Mode( Clock OFF)
Fast Wake Up (Standby Mode, clock ON)
Normal Mode with 1 output ON (IBCTLDACCORE = 01,
IBCTLCHx =10)
Normal Mode with 2 outputs ON (IBCTLDACCORE =01,
IBCTLCHx =10)
—
2
4.3
5
3
3
5.6
6.5
µA
mA
mA
mA
Table 44-54. Channel Conversion Time and DAC Clock
Symbol Parameter Conditions Min Typ Max Units
f
DAC
Clock Frequency 1 — 50 MHz
t
CP_DAC
Clock Period — — 20 ns
Refresh Time Refresh Time 8-bit Accuracy 24 — — us
t
START-UP
Startup Time
From Sleep Mode to Normal Mode:
- Voltage reference OFF
- DAC core OFF
From Fast Wake Up to Normal Mode:
- Voltage reference ON
- DAC core OFF
20
2.5
30
3.75
40
5
µs
t
CONV
Conversion Time — — 25 T
CP_DAC
Table 44-55. Static Performance Characteristics
Parameter Conditions Min Typ Max Units
Resolution —12—bit
Integral Non-linearity (INL)
2.4V < V
VDDIN
<2.7V
2.7V < V
VDDIN
<3.6V
-6
-2 ±1
+6
+2
LSB
Differential Non-linearity (DNL)
2.4V < V
VDDIN
<2.7V
2.7V < V
VDDIN
<3.6V
-2.5 ±1 +2.5 LSB
Offset Error -32 ±8 32 LSB
Gain Error -32 ±2 32 LSB