ADT7302 데이터 시트보기 (PDF) - Analog Devices
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ADT7302 Datasheet PDF : 16 Pages
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ADT7302
SPECIFICATIONS
TA = TMIN to TMAX, VDD = 2.7 V to 5.25 V, unless otherwise noted. All specifications for –40°C to +125°C, unless otherwise stated.
Table 1.
Parameter
TEMPERATURE SENSOR AND ADC
Accuracy
Temperature Resolution
Autoconversion Update Rate, tR
Temperature Conversion Time
Thermal Time Constant1
SUPPLIES
Supply Voltage
Supply Current
Normal Mode
Shutdown Mode
Power Dissipation
Normal Mode (Average)
Shutdown Mode (Average)2
1 SPS
10 SPS
100 SPS
DIGITAL INPUT3
Input High Voltage, VIH
Input Low Voltage, VIL
Input Current, IIN
Input Capacitance, CIN
DIGITAL OUTPUT3
Output High Voltage, VOH
Output Low Voltage, VOL
Output Capacitance, COUT
Min
Typ
Max
±1
±2
±2.5
±3
0.03125
1
800
2
2.7
5.25
1.6
2.2
190
300
1.6
2.2
280
400
0.2
1
0.4
2
20
631
1.41
4.88
7.4
42.9
65
423
641
2.5
0.8
±1
10
VDD − 0.3 V
0.4
50
Unit Test Conditions/Comments
VDD = 3.3 V (±10%) and 5 V (±5%).
°C
TA = 0°C to 70°C.
°C
TA = −20°C to +85°C.
°C
TA = −40°C to +125°C.
°C
sec
Temperature measurement every 1 second.
μs
sec
V
For specified performance.
mA
VDD = 3.3 V. Powered up and converting.
μA
VDD = 3.3 V. Powered up and not converting.
mA
VDD = 5 V. Powered up and converting.
μA
VDD = 5 V. Powered up and not converting.
μA
VDD = 3.3 V, TA = 0°C to 70°C.
μA
VDD = 5 V, TA = 0°C to 70°C.
μA
VDD = 2.7 V to 5.25 V, TA = −40°C to 125°C.
μW
VDD = 3.3 V. Auto conversion update, tR.
mW VDD = 5 V. Auto conversion update, tR.
μW
VDD = 3.3 V.
μW
VDD = 5 V.
μW
VDD = 3.3 V.
μW
VDD = 5 V.
μW
VDD = 3.3 V.
μW
VDD = 5 V.
V
V
μA
VIN = 0 V to VDD.
pF
All digital inputs.
ISOURCE = ISINK = 200 μA.
V
IOL = 200 μA.
pF
1 The thermal time constant is the time it takes for a temperature delta to change to 63.2% of its final value. For example, if the ADT7302 experiences a thermal shock
from 0°C to 100°C, it typically takes 2 seconds for the ADT7302 to reach 63.2°C.
2 The ADT7302 is taken out of shutdown mode and a temperature conversion is immediately performed after this write operation. Once the temperature conversion is
complete, the ADT7302 is put back into shutdown mode.
3 Guaranteed by design and characterization, not production tested.
Rev. 0 | Page 3 of 16
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