Datasheet ADT7422 (Analog Devices) - 7

Data Sheet ADT7422 TYPICAL PERFORMANCE CHARACTERISTICS 0.25 0.035 0.20 0.030 0.15 0.10 (°C) 0.025 (°C) N R IO 0.05 IAT 0.020 RRO V E 0 DE R O 0.015 –0.05 NS ARD E S –0.10 AND 0.010 T S –0.15 0.005 –0.20 –0.25
4
0
7
35 36 37 38 39 40 41 42
-00
35 36 37 38 39 40 41 42
-10
TEMPERATURE (°C)
961 961 20
TEMPERATURE (°C)
20 Figure 4. VSM Temperature Range of the EVAL-ADT7422MBZ Post Soldering Figure 7. Standard Deviation of the EVAL-ADT7422MBZ Post Soldering to to JEDEC J-STD-020, VDD = 3 V JEDEC J-STD-020, VDD = 3 V
0.25 50 0.20 0.15 40 ) 0.10 S (°C IT R 0.05 H F 30 RRO O E 0 R R BE O –0.05 20 NS E NUM S –0.10 –0.15 10 –0.20 –0.25 0
5 -00
25 30 35 40 45 50 –0.09 –0.06 –0.03 0 0.03 0.06 0.09
108 1-
TEMPERATURE (°C)
961
SENSOR ERROR (°C)
20 2096 Figure 5. Narrow Temperature Range of the EVAL-ADT7422MBZ Post Figure 8. Histogram Distribution of Factory Calibration Error at 38°C for Soldering to JEDEC J-STD-020, VDD = 3 V 170 Devices, VDD = 3 V
0.25 0.09 0.20 0.06 0.15 0.10 (°C) 0.03 (°C) R 0.05 R RRO RRO E 0 0 E R R O –0.05 O NS NS E E –0.03 S –0.10 S –0.15 –0.06 –0.20 –0.25 –0.09
6 9
–20 –10 0 10 20 30 40 50 60 70 80
-00
0 30 60 90 120 150 180
-10 961
TEMPERATURE (°C)
961
DEVICE NUMBER
20 20 Figure 6. Wide Temperature Range of the EVAL-ADT7422MBZ Post Soldering Figure 9. Factory Calibration Error at 38°C for 170 Devices, VDD = 3 V to JEDEC J-STD-020, VDD = 3 V Rev. 0 | Page 7 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