Datasheet

1131
SAM4S Series [DATASHEET]
11100F–ATARM–29-Jan-14
44.8 12-bit ADC Characteristics
Electrical data are in accordance with the following standard conditions unless otherwise specified:
 Operating temperature range from -40°C to + 105°C
 Min and max data are defined as three times the standard deviation of the manufacturing process
44.8.1 ADC Power Supply
Notes: 1. See Section “Low Voltage Supply”.
2. In Sleep mode the ADC core, sample and hold, and internal reference operational amplifier are off.
3. In Fast Wake-up mode, only the ADC core is off.
44.8.1.1 ADC Bias Current
All current consumption is performed when the field IBCTL in the ADC Analog Control register (ADC_ACR) is set to 01.
IBCTL controls the ADC biasing current, with the nominal setting IBCTL = 01.
IBCTL = 00 is the required value for a sampling frequency below 500 kHz, and IBCTL = 01 for a sampling frequency
between 500 kHz and 1 MHz.
Table 44-35. Analog Power Supply Characteristics
Symbol Parameter Conditions Min Typ Max Unit
V
VDDIN
Supply Voltage Range
Full operational 2.4 — 3.6
V
(1)
2—2.4
I
VDDIN
Analog Current
Consumption
ADC Sleep Mode
(2)
ADC Fast Wake-up Mode
(3)
ADC Normal Mode
—
2
2.4
4.3
4
3.5
6
µA
mA
mA
I
VDDcore
Digital Current
Consumption
ADC Sleep Mode (all off)
(2)
ADC Normal Mode
—
—
0.2
0.1
0.4
µA
mA
Table 44-36. ADC Bias Current Adjustment
IBCTL=00 IBCTL=01 IBCTL=10 IBCTL=11
Typ-22% Typ Reserved Reserved