Datasheet ADT7408 (Analog Devices) - 7

Data Sheet ADT7408 TYPICAL PERFORMANCE CHARACTERISTICS 0.4 5.0 V T DD = 3.3V A = 85°C 4.5 0.3 4.0 °C) 0.2 A) R ( (µ 3.5 T 0.1 N RRO RE 3.0 E 0 2.5 URE N CUR W 2.0 RAT –0.1 E DO P T M 1.5 E –0.2 HU T S 1.0 –0.3
5
0.5
01 -016 6- 16
–0.4
571 0 057
0 –40 –20 0 20 40 60 80 100 120 140 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 TEMPERATURE (°C) SUPPLY VOLTAGE (V)
Figure 5. Temperature Accuracy Figure 8. Shutdown Current vs. Supply Voltage
450 0.25 TA = 85°C V 400 DD = 3.3V ± 10% A 0.1µF CAPACITOR IS CONNECTED AT THE VDD PIN. A) CONVERTING 3.3V µ 0.20 ( 350 °C) NT ( 300 R 0.15 RRO CURRE 250 E Y L AVERAGE 3.3V P 200 URE UP 0.10 S RAT E 150 E P M RAG E E 100 T 0.05 AV 50
8 17 0 -01 6- 716
0
571 0
0
05
–40 –20 0 20 40 60 80 100 120 140 0 1 2 3 4 5 6 TEMPERATURE (°C) SUPPLY RIPPLE FREQUENCY (MHz)
Figure 6. Supply Current vs. Temperature Figure 9. Temperature Accuracy vs. Supply Ripple Frequency
300 TA = 85°C A) 275 (µ NT 250 URRE C Y L 225 P UP S E 200 RAG E AV 175
9 01 6- 571 0
1503.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 SUPPLY VOLTAGE (V)
Figure 7. Supply Current vs. Supply Voltage Rev. A | Page 7 of 22 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING CHARACTERISTICS TIMING DIAGRAM ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER DETAILS MODES OF OPERATION REGISTERS ADDRESS POINTER REGISTER (WRITE ONLY) CAPABILITY REGISTER (READ ONLY) CONFIGURATION REGISTER (READ/WRITE) TEMPERATURE TRIP POINT REGISTERS Alarm Temperature Upper Boundary Trip Register (Read/Write) Alarm Temperature Lower Boundary Trip Register (Read/Write) Critical Temperature Trip Register (Read/Write) Temperature Value Register (Read Only) ID REGISTERS Manufacturer ID Register (Read Only) Device ID and Revision Register (Read Only) TEMPERATURE DATA FORMAT 12-Bit Temperature Data Format 10-Bit Temperature Data Format EVENT PIN FUNCTIONALITY Event Thresholds Alarm Window Trip Critical Trip Interrupt Mode Comparator Mode SERIAL INTERFACE Serial Bus Address SMBUS/I2C COMMUNICATIONS Writing Data to a Register Reading Data From the ADT7408 Writing to the Pointer Register for a Subsequent Read Reading from Any Pointer Register APPLICATIONS INFORMATION THERMAL RESPONSE TIME SELF-HEATING EFFECTS SUPPLY DECOUPLING TEMPERATURE MONITORING OUTLINE DIMENSIONS ORDERING GUIDE