Datasheet

1070
SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
43.8 12-Bit DAC Characteristics
External voltage reference for DAC is ADVREF. See the ADC voltage reference characteristics Table 43-32 on page
1065.
Note: DAC Clock (F
DAC) = 5 MHz, Fs = 200kHz, IBCTL = 01.
Table 43-40. Analog Power Supply Characteristics
Symbol Parameter Conditions Min Typ Max Units
V
VDDIN
Analog
Supply
2.4 3.0 3.6 V
Max. Voltage
Ripple
rms value, 10 kHz to 20 MHz — — 20 mV
I
VDDIN
Current
Consumption
Sleep Mode( Clock OFF)
Fast Wake Up (Stanby 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 43-41. 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
F
S
Sampling Frequency — — 2 MHz
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 43-42. 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