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ADT7421ARMZ-2RL 数据表(PDF) 4 Page - ON Semiconductor

部件名 ADT7421ARMZ-2RL
功能描述  Precision Temperature Sensor with Beta Compensation (for <45 nm Geometries)
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制造商  ONSEMI [ON Semiconductor]
网页  http://www.onsemi.com
标志 ONSEMI - ON Semiconductor

ADT7421ARMZ-2RL 数据表(HTML) 4 Page - ON Semiconductor

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ELECTRICAL CHARACTERISTICS (TA = −40°C to +125°C, VDD = 3.0 V to 3.6 V, unless otherwise noted)
Parameter
Conditions
Min
Typ
Max
Unit
Power Supply
Supply Voltage, VDD
3.0
3.30
3.6
V
Average Operating Supply Current, IDD
0.0625 Conversions/Sec Rate (Note 1)
3.0
4.0
mA
Standby Mode Supply Current
−40°C ≤ TA ≤ +85°C
−40°C ≤ TA ≤ +125°C
10
20
mA
Power-On-Reset Threshold
1.0
2.8
V
Temperature−To−Digital Converter
Local Sensor Accuracy
0°C ≤ TA ≤ +125°C
±2.75
°C
Resolution
1.0
°C
Remote Transistor Sensor Accuracy
+40°C ≤ TA ≤ +85°C, +60°C ≤ TD ≤ +110°C (Note 2)
+25°C ≤ TA ≤ +85°C, +60°C ≤ TD ≤ +110°C (Note 2)
TA = +40°C, +60°C ≤ TD ≤ +110°C (Note 2)
±2.5
±3.25
±1.75
°C
Resolution
0.25
°C
Remote Sensor Source Current
The range of source currents provided to the external
thermal transistor for temperature measurements.
10 to
360
mA
Conversion Time
From stop bit to conversion complete, one-shot mode
with averaging switched on.
One-shot mode with averaging off.
184
20
ms
Maximum Series Resistance Cancelled
Resistance split evenly on both the D+ and D– inputs.
50
W
Open−Drain Digital Outputs (THERM, ALERT/THERM2, SDA)
Output Low Voltage, VOL
IOUT = −6.0 mA
0.2
V
High Level Output Leakage Current,
IOH
VOUT = VDD
0.1
1.0
mA
SMBus Interface (Note 3)
Logic Input High Voltage, VIH
SCL, SDA
3.0 V ≤ VDD ≤ 3.6 V
2.1
V
Logic Input Low Voltage, VIL
SCL, SDA
3.0 V ≤ VDD ≤ 3.6 V
0.8
V
Hysteresis
500
mV
SDA Output Low Voltage, VOL
IOUT = −6.0 mA
0.4
V
Logic Input Current, IIH, IIL
−1.0
+1.0
mA
SMBus Input Capacitance,
SCLK, SDATA
10
pF
SMBus Clock Frequency
400
kHz
SMBus Timeout (Note 4)
User programmable
25
300
ms
SCLK Falling Edge to SDATA Valid
Time
Master clocking in data
1.0
ms
1. See Table 4 for information on other conversion rates.
2. Guaranteed by characterization, but not production tested.
3. See SMBus Timing Specifications section for more information.
4. Disabled by default. Detailed procedures to enable it are in the Serial Bus Interface section of this datasheet.


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