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ADT7408 Datasheet(PDF) 3 Page - Analog Devices

Part No. ADT7408
Description  -2 C Accurate, 12-Bit Digital Temperature Sensor
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADT7408 Datasheet(HTML) 3 Page - Analog Devices

 
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ADT7408
Rev. 0 | Page 3 of 24
SPECIFICATIONS
All specific
ations TA = −20°C to +125°C, VDD = 3.0 V to 3.6 V, unless otherwise noted.
Table 1.
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
TEMPERATURE SENSOR AND ADC
Local Sensor Accuracy (C Grade)
±0.5
±2.0
°C
75°C
≤ T
A
≤ 95°C, 3.0 V ≤ V
DD
≤ 3.6 V active range
±1
±3.0
°C
40°C
≤ T
A
≤ 125°C, 3.0 V ≤ V
DD
≤ 3.6 V monitor range
±1
±4.0
°C
−20°C
≤ T
A
≤ 125°C, 3.0 V ≤ V
DD
≤ 3.6 V
ADC Resolution
12
Bits
Temperature Resolution
0.0625
°C
Temperature Conversion Time
60
125
ms
Long Term Drift
0.081
°C
Drift over 10 years, if part is operated at 55°C
EVENT# OUTPUT (OPEN DRAIN)
Output Low Voltage, VOL
0.4
V
IOL = 3 mA
Pin Capacitance
10
pF
High Output Leakage Current
IOH
0.1
1
μA
EVENT# = 3.6 V
Rise Time1
tLH
30
ns
Fall Time1
tHL
30
ns
RON Resistance (Low Output)1
15
Ω
Supply and temperature dependent
DIGITAL INPUTS
Input Current
IIH, IIL
−1
+1
μA
VIN = 0 V to VDD
Input Low Voltage
VIL
0.8
V
3.0 V
≤ V
DD
≤ 3.6 V
Input High Voltage
VIH
2.1
V
3.0 V
≤ V
DD
≤ 3.6 V
SCL, SDA Glitch Rejection1
50
ns
Input filtering suppresses noise spikes of less than 50 ns
Pin Capacitance1
10
pF
DIGITAL OUTPUT (OPEN DRAIN)
Output Low Current
IOL
6
mA
SDA forced to 0.6 V
Output Low Voltage
VOL
0.4
V
3.0 V
≤ V
DD
≤ 3.6 V at I
OPULL_UP
= 350
μA
Output High Voltage
VOH
2.1
V
Output Capacitance1
COUT
10
pF
POWER REQUIREMENTS
Supply Voltage
VDD
3.0
3.3
3.6
V
Average Supply Current
IDD
240
500
μA
Supply Current
IDD_CONV
360
550
μA
Device current while converting
Shutdown Mode at 3.3 V
3
20
μA
Average Power Dissipation
PD
790
μW
VDD = 3.3 V, normal mode at 25°C
1 Guaranteed by design and characterization, not production tested.


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