Atmel SAM4S Series, Preliminary Data Sheet

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1118
11100B–ATARM–31-Jul-12
SAM4S Series [Preliminary]
Note: 1. Input Voltage range can be up to VDDIN without destruction or over-consumption.
If VDDIO < V
ADVREF
max input voltage is VDDIO.
42.8 12-Bit DAC Characteristics
Table 42-33. Analog Inputs
Parameter Min Typ Max Units
Input Voltage Range 0 V
ADVREF
Input Leakage Current ±0.5 µA
Input Capacitance 8 pF
Table 42-34. 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 (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 42-35. 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