Datasheet ADT7422 (Analog Devices) - 8

ADT7422 Data Sheet 30 300 25 250 CONTINUOUS 20 200 CONVERSION ) ) A µ ( 15 (µA 150 I DD I DD 10 100 5 50 3.3V 1SPS 3.0V 2.7V 0 0
9
–100 –50 0 50 100 150 200
-007
–100 –50 0 50 100 150 200
-00 61
TEMPERATURE (°C)
961 9 20
TEMPERATURE (°C)
20 Figure 10. Shutdown Operating Supply Current (IDD) vs. Temperature for Figure 12. IDD vs. Temperature at 3 V Various Voltages
140 125°C 120 105°C 100 (°C) 85°C 80 URE IT TAKES LESS THAN RAT 2 SECONDS TO REACH 63.2% E 60 OF TEMPERATURE SPAN P M E T 40 20 0
8 00
0 5 10 15 20 25
1-
TIME (s)
2096 Figure 11. Thermal Response Time for Various Temperatures Rev. 0 | Page 8 of 23 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PRODUCT HIGHLIGHTS FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS I2C TIMING SPECIFICATIONS Timing Diagram ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER DETAILS NORMAL MODE ONE SHOT MODE CT and INT Operation in One Shot Mode 1 SPS MODE SHUTDOWN MODE FAULT QUEUE TEMPERATURE DATA FORMAT TEMPERATURE CONVERSION FORMULAS 16-Bit Temperature Data Format 13-Bit Temperature Data Format 10-Bit Temperature Data Format 9-Bit Temperature Data Format REGISTERS ADDRESS POINTER REGISTER TEMPERATURE VALUE REGISTERS STATUS REGISTER CONFIGURATION REGISTER THIGH SETPOINT REGISTERS TLOW SETPOINT REGISTERS TCRIT SETPOINT REGISTERS THYST SETPOINT REGISTER ID REGISTER SERIAL INTERFACE SERIAL BUS ADDRESS WRITING DATA READING DATA RESET GENERAL CALL INT AND CT OUTPUTS UNDERTEMPERATURE AND OVERTEMPERATURE DETECTION Comparator Mode Interrupt Mode APPLICATIONS INFORMATION THERMAL RESPONSE TIME SUPPLY DECOUPLING POWERING FROM A SWITCHING REGULATOR TEMPERATURE MEASUREMENT QUICK GUIDE TO MEASURING TEMPERATURE OUTLINE DIMENSIONS ORDERING GUIDE