Datasheet ADT7420 (Analog Devices) - 8

ADT7420 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 1.00 30 0.75 25 0.50 (°C) R MAX ACCURACY LIMITS 20 (µA) RO 0.25 R DD E N I E W 15 R 0 U T DO A –0.25 HUT 10 5.5V MAX ACCURACY LIMITS S MPER E 5.0V T –0.50 5 4.5V 3.3V –0.75 3.6V 3.0V 2.7V 0 –1.00
2 27
–100 –50 0 50 100 150 200 –60 –40 –20 0 20 40 60 80 100 120 140
0 -03
TEMPERATURE (°C)
013-
TEMPERATURE (°C)
013 09 09 Figure 4. Temperature Accuracy at 3 V Figure 7. Shutdown Current vs. Temperature
1.00 300 0.75 I 250 DD CONTINUOUS CONVERSION ) MAX ACCURACY LIMITS 0.50 (°C R 200 O R 0.25 ) ER E (µA 150 R 0 U T I DD A –0.25 ER 100 P M E T –0.50 IDD 1SPS MAX ACCURACY LIMITS 50 –0.75 –1.00 0
9 2
–60 –40 –20 0 20 40 60 80 100 120 140
026
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
0 3-
TEMPERATURE (°C)
013-
SUPPLY VOLTAGE (V)
01 09 09 Figure 5. Temperature Accuracy at 5 V Figure 8. Average Operating Supply Current vs. Supply Voltage
300 8 5.5V CONTINUOUS CONVERSION 7 250 6 3.0V CONTINUOUS ) 200 CONVERSION (µA 5 ) I DD A (µ 150 N 4 W I DD DO 3 UT 100 H S 5.5V 1SPS 2 50 3.0V 1SPS 1 0 0
8
–100 –50 0 50 100 150 200 2.5 3.0 3.5
02
4.0 4.5 5.0 5.5 6.0
-210 3-
TEMPERATURE (°C) SUPPLY VOLTAGE (V)
9013 0901 0 Figure 6. Operating Supply Current vs. Temperature Figure 9. Shutdown Current vs. Supply Voltage Rev. A | Page 8 of 24 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 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 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