ADT7310TRZ Analog Devices Inc, ADT7310TRZ Datasheet - Page 21

• Manufacturer Part Number: ADT7310TRZ
• Description: IC TEMP SENSOR 16BIT SPI 8SOIC
• Manufacturer: Analog Devices Inc

Specifications of ADT7310TRZ

• Function: Temp Monitoring System (Sensor)
• Topology: ADC (Sigma Delta), Oscillator, Register Bank
• Sensor Type: Internal
• Sensing Temperature: -55°C ~ 150°C
• Output Type: SPI™
• Output Alarm: Yes
• Output Fan: No
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -55°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Ic Output Type: Digital
• Sensing Accuracy Range: ± 0.5°C
• Supply Current: 230µA
• Supply Voltage Range: 2.7V To 5.5V
• Resolution (bits): 16bit
• Sensor Case Style: SOIC
• No. Of Pins: 8
• Temperature Sensor Function: Temp Sensor
• Package Type: SOIC N
• Operating Temperature (max): 150C
• Operating Temperature Classification: Military
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

INT AND CT OUTPUTS
The INT and CT pins are open drain outputs, and both pins
require a 10 kΩ pull-up resistor to V
UNDERTEMPERATURE AND OVERTEMPERATURE
DETECTION
The INT and CT pins have two undertemperature/over-
temperature modes: comparator mode and interrupt mode.
The interrupt mode is the default power-up overtemperature
mode. The INT output pin becomes active when the tempera-
ture is greater than the temperature stored in the T
register or less than the temperature stored in the T
register. How this pin reacts after this event depends on the
overtemperature mode selected.
Figure 22 illustrates the comparator and interrupt modes for
events exceeding the T
Figure 23 illustrates the comparator and interrupt modes for
events exceeding the T
HIGH
LOW
limit with both pin polarity settings.
limit with both pin polarity settings.
POLARITY = ACTIVE HIGH
POLARITY = ACTIVE HIGH
POLARITY = ACTIVE LOW
POLARITY = ACTIVE LOW
Figure 22. INT Output Temperature Response Diagram for T
(COMPARATOR MODE)
(COMPARATOR MODE)
(INTERRUPT MODE)
(INTERRUPT MODE)
DD
.
INT PIN
INT PIN
INT PIN
INT PIN
TEMPERATURE
82°C
81°C
80°C
79°C
78°C
77°C
76°C
75°C
74°C
73°C
HIGH
LOW
setpoint
setpoint
Rev. 0 | Page 21 of 24
READ
Comparator Mode
In comparator mode, the INT pin returns to its inactive status
when the temperature drops below the T
rises above the T
Putting the ADT7310 into shutdown mode does not reset the
INT state in comparator mode.
Interrupt Mode
In interrupt mode, the INT pin goes inactive when any ADT7310
register is read. Once the INT pin is reset, it goes active again
only when the temperature is greater than the temperature
stored in the T
stored in the T
Placing the ADT7310 into shutdown mode resets the INT pin
in the interrupt mode.
READ
HIGH
Overtemperature Events
HIGH
LOW
LOW
READ
setpoint register.
setpoint register or less than the temperature
+ T
T
T
HIGH
HIGH
TIME
HYST
– T
HYST
limit.
HIGH
− T
HYST
ADT7310
limit or