ADT7421ARMZ-RL7 ON Semiconductor, ADT7421ARMZ-RL7 Datasheet - Page 4

• Manufacturer Part Number: ADT7421ARMZ-RL7
• Description: IC TEMP MONITOR 8-MSOP
• Manufacturer: ON Semiconductor
• Type: Temperature Sensorr

Specifications of ADT7421ARMZ-RL7

• Input Type: Logic
• Output Type: Logic
• Interface: 2-Wire SMBus
• Current - Supply: 4mA
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Full Temp Accuracy: +/- 2.75 C, +/- 3.25 C
• Digital Output - Bus Interface: Serial (2-Wire)
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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.
ELECTRICAL CHARACTERISTICS
Power Supply
Temperature−To−Digital Converter
Open−Drain Digital Outputs (THERM, ALERT/THERM2, SDA)
SMBus Interface (Note 3)
Supply Voltage, V
Average Operating Supply Current, I
Standby Mode Supply Current
Power-On-Reset Threshold
Local Sensor Accuracy
Resolution
Remote Transistor Sensor Accuracy
Resolution
Remote Sensor Source Current
Conversion Time
Maximum Series Resistance Cancelled
Output Low Voltage, V
High Level Output Leakage Current,
I
Logic Input High Voltage, V
Logic Input Low Voltage, V
Hysteresis
SDA Output Low Voltage, V
Logic Input Current, I
SMBus Input Capacitance,
SMBus Clock Frequency
SMBus Timeout (Note 4)
SCLK Falling Edge to SDATA Valid
Time
OH
SCL, SDA
SCL, SDA
SCLK, SDATA
Parameter
DD
IH
OL
, I
IL
IL
IH
OL
DD
(T
0.0625 Conversions/Sec Rate (Note 1)
−40°C ≤ T
−40°C ≤ T
0°C ≤ T
+40°C ≤ T
+25°C ≤ T
T
The range of source currents provided to the external
thermal transistor for temperature measurements.
From stop bit to conversion complete, one-shot mode
with averaging switched on.
One-shot mode with averaging off.
Resistance split evenly on both the D+ and D– inputs.
I
V
3.0 V ≤ V
3.0 V ≤ V
I
User programmable
Master clocking in data
OUT
OUT
A
A
OUT
= +40°C, +60°C ≤ T
= −40°C to +125°C, V
= −6.0 mA
= −6.0 mA
= V
A
DD
DD
≤ +125°C
DD
A
A
A
A
≤ +85°C
≤ +125°C
≤ +85°C, +60°C ≤ T
≤ +85°C, +60°C ≤ T
≤ 3.6 V
≤ 3.6 V
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Conditions
D
≤ +110°C (Note 2)
4
DD
= 3.0 V to 3.6 V, unless otherwise noted)
D
D
≤ +110°C (Note 2)
≤ +110°C (Note 2)
−1.0
Min
3.0
1.0
2.1
10 to
3.30
0.25
Typ
360
184
500
3.0
1.0
0.1
20
50
10
25
±2.75
±3.25
±1.75
Max
±2.5
+1.0
400
300
3.6
4.0
2.8
0.2
1.0
0.8
0.4
1.0
10
20
Unit
kHz
mA
mV
ms
ms
mA
mA
mA
mA
pF
°C
°C
°C
°C
ms
W
V
V
V
V
V
V