Preliminary Technical Data
ADT7301
SPECIFICATIONS
TA = TMIN to TMAX, VDD = 2.7 V to 5.5 V, unless otherwise noted. All specifications apply for –40°C to +150°C, unless otherwise stated
Table 1. A Grade Specifications
Parameter
TEMPERATURE SENSOR AND ADC
Accuracy
Temperature Resolution
Auto Conversion Update Rate, tR
Temperature Conversion Time
Thermal Time Constant2
SUPPLIES
Supply Voltage
Supply Current
Normal Mode
Shutdown Mode
Power Dissipation
Normal Mode (Average)
Shutdown Mode (Average)3
1 sps
10 sps
100 sps
DIGITAL INPUT4
Input High Voltage, VIH
Input Low Voltage, VIL
Input Current, IIN
Input Capacitance, CIN
DIGITAL OUTPUT5
Output High Voltage, VOH
Output Low Voltage, VOL
Output Capacitance, COUT
Min
Typ
Max Unit Test Conditions/Comments
VDD = +3.3 V (±10%) and 5 V (±10%)
TBD
±1 °C
TA = 0°C to 70°C.
TBD
±2 °C
TA = −20°C to +85°C.
TBD
±3 °C
TA = −40°C to +125°C.
TBD
±41 °C
TA = −40°C to +150°C.
0.03125
°C
1
sec Temperature measurement every 1 second
2
ms
2
sec
2.7
5.5 V
For Specified Performance
1.6
2.2 mA VDD = 3.3 V. Powered up and converting
190
300 µA VDD = 3.3 V. Powered up and not converting
1.6
2.2 mA VDD = 5 V. Powered up and converting
280
400 µA VDD = 5 V. Powered up and not converting
0.2
1
µA
VDD = 3.3 V.
0.2
1
µA
VDD = 5 V.
631
µW VDD = 3.3 V. Auto conversion update, tR.
1.41
mW VDD = +5 V. Auto conversion update, tR.
4.88
µW VDD = 3.3 V
7.4
µW VDD = 5 V
42.9
µW VDD = 3.3 V
65
µW VDD = 5 V
423
µW VDD = 3.3 V
641
µW VDD = 5 V
2.5
V
0.8 V
±1
µA
VIN = 0 V to VDD
10 pF All digital inputs
VDD − 0.3 V
ISOURCE = ISINK = 200 µA
0.4 V
IOL = 200 µA
50 pF
1 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 will affect device reliability.
2 Thermal Time Constant is the time it takes for a starting temperature difference to change to 36.8% of it’s starting value. For example if the ADT7301 experienced a
thermal shock from 0°C to 100°C, it would take typically 2 secs for the ADT7301 to reach 63.2°C.
3 The ADT7301 is taken out of shutdown mode and a temperature conversion is immediately performed after this write operation. Once the temperature conversion is
complete the ADT7301 is put back into shutdown mode.
4 Guaranteed by design and characterization, not production tested.
5 Guaranteed by design and characterization, not production tested.
Specifications subject to change without notice
Rev. PrJ | Page 3 of 14