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ATSENSE301HA-AUR 数据手册 - ATMEL（爱特美尔）
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ATMEL（爱特美尔）
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ATSENSE301HA-AUR数据手册
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51
ATSENSE-101/ATSENSE-201(H)/ATSENSE-301(H) [DATASHEET]
11219B–ATSENSE–20-Feb-14
9.7 Voltage Reference and Die Temperature Sensor
Unless otherwise specified: External components according to Section 3. ”Application Block Diagram”: C
VREF
=1 µF and
C
VDDA
=1 µF, MCLK = 4.096 MHz, V
VDDIN
= V
VDDIO
= 3.3V, T
J
= [-40°C; +100°C].
Note: 1. TC is defined using the box method: TC = (V
REF_MAX
- V
REF_MIN
) / (V
REF0
x (T
MAX
- T
MIN
) )
9.8 VDDA LDO Regulator
Unless otherwise specified: External components according to Section 3. ”Application Block Diagram”: C
VREF
= 1 µF and
C
VDDA
= 1 µF, MCLK = 4.096 MHz, V
DDIN
= V
DDIO
= 3.3V, T
J
= [-40°C; +100°C].
Table 9-7. Voltage Reference and Die Temperature Sensor Electrical Characteristics
Symbol Parameter Comments Min Typ Max Units
V
VDDA
Operating Supply Voltage – 2.7 2.8 2.9 V
I
VDDA
Supply Current
OFF – – 0.1
µA
ON – 70 100
V
REF0
Output voltage initial accuracy At T
J0
= 23°C 1.142 1.144 1.146 V
TC
VREF_U
V
REF
drift with temperature
(1)
Uncompensated – 50 –
ppm /°C
TC
VREF_C
Using factory programmed
calibration registers.
–10–
R
OUT
V
REF
output resistance – 200 500 800 Ω
D
TEMP_Lin
Die Temperature Sensor, Digital
Reading Linearity
––+/-2–°C
I
VREF_OFF
Current in VREF pin when
internal voltage reference is OFF
– -100 – 100 nA
Table 9-8. VDDA LDO Regulator
Symbol Parameter Comments Min Typ Max Units
V
VDDIN
Operating Supply Voltage – 3.0 3.3 3.6 V
I
VDDIN
Supply Current
OFF – – 0.1
µA
ON – – 250
I
O
Output Current – – – 15 mA
V
O
DC Output Voltage I
O
= 0mA 2.75 2.8V 2.85 V
dV
O
/ dI
O
Static Load Regulation I
O
: 0 to I
OMAX
-5 – – mV/mA
dV
O
/ dV
VDDIN
Static Line Regulation V
DDIN
: 3.0V to 3.6VV -5 – +5 mV/V
PSRR Power Supply Rejection Ratio
f = DC to 2000 Hz – 40 –
dB
f = 1 MHz – 40 –
t
START
Start-Up time
V
O
from 0 to 95% of final value.
I
O
= 0mA
––1ms
C
O
Stable Output Capacitor Range
Capacitive 0.5 1 4.7 µF
Resistive 5 10 300 mΩ
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