ADT7301
SPECIFICATIONS
TA = TMIN to TMAX, VDD = 2.7 V to 5.25 V, unless otherwise noted. All specifications are for −40°C to +150°C, unless otherwise noted.
Table 1. A Grade Specifications
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
VDD = 3.3 V ( 10%) and 5 V ( 5%)
TA = 0°C to 70°C
TEMPERATURE SENSOR AND ADC
Accuracy1
0.5
1
°C
2
°C
TA = −20°C to +85°C
3
42
°C
°C
TA = −40°C to +125°C
TA = −40°C to +150°C
Temperature Resolution
Autoconversion Update Rate, tR
Temperature Conversion Time
Thermal Time Constant3
SUPPLIES
0.03125
°C
1.5
1.2
2
sec
ms
sec
Temperature measurement every 1.5 second
Supply Voltage
2.7
5.25
V
For specified performance
Supply Current
Normal Mode
1.6
190
1.6
280
0.2
0.4
2.2
300
2.2
400
1
mA
µA
mA
µA
µA
µA
µA
VDD = 3.3 V, powered up and converting
VDD = 3.3 V, powered up and not converting
VDD = 5 V, powered up and converting
VDD = 5 V, powered up and not converting
VDD = 3.3 V, TA = 0°C to 70°C
Shutdown Mode
2
20
VDD = 5 V, TA = 0°C to 70°C
VDD = 2.7 V to 5.25 V, TA = −40°C to +150°C
Power Dissipation
Normal Mode (Average)
631
1.41
µW
mW
VDD = 3.3 V, autoconversion update, tR
VDD = 5 V, autoconversion update, tR
Shutdown Mode (Average)4
1 SPS
4.88
7.4
42.9
65
423
641
µW
µW
µW
µW
µW
µW
VDD = 3.3 V
VDD = 5 V
VDD = 3.3 V
VDD = 5 V
VDD = 3.3 V
VDD = 5 V
10 SPS
100 SPS
DIGITAL INPUT5
Input High Voltage, VIH
Input Low Voltage, VIL
Input Current, IIN
Input Capacitance, CIN
DIGITAL OUTPUT5
2.5
V
V
µA
pF
0.8
1
10
VIN = 0 V to VDD
All digital inputs
Output High Voltage, VOH
Output Low Voltage, VOL
Output Capacitance, COUT
VDD − 0.3 V
ISOURCE = ISINK = 200 µA
IOL = 200 µA
0.4
50
V
pF
1 The accuracy specifications for 0°C to 70°C are specified to 3.5-Σ performance.
2 It is not recommended to operate the device at temperatures above 125°C for greater than a total of 5% (5,000 hours) of the lifetime of the device. Any exposure
beyond this limit affects device reliability.
3 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 ADT7301 experiences a thermal shock
from 0°C to 100°C, it would take typically 2 seconds for the ADT7301 to reach 63.2°C.
4 The ADT7301 is taken out of shutdown mode and a temperature conversion is immediately performed after this write operation. When the temperature conversion is
complete, the ADT7301 is put back into shutdown mode.
5 Guaranteed by design and characterization, not production tested.
Rev. B | Page 3 of 16
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