Datasheet ADT7312 (Analog Devices) - 8

ADT7312 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 1.0 30 VDD = 2.7V 0.8 VDD = 3.0V 25 VDD = 3.6V 0.6 VDD = 4.5V ºC) VDD = 5.0V R ( 0.4 A) 20 VDD = 5.5V µ ( RRO DD E 0.2 N I 15 URE W 0 DO RAT E P –0.2 HUT 10 M S E T –0.4 5 –0.6 –0.8 0
005
–70 –50 –30 –10 10 30 50 70 90 110 130 150 170 190 –60 –40 –20 0 20 40 60 80 100 120 140 160 180
008
TEMPERATURE (ºC)
06791-
TEMPERATURE (°C)
06791- Figure 4. Temperature Accuracy at 3 V Figure 7. Shutdown Current vs. Temperature
1.5 300 CONTINUOUS CONVERSION 250 1.0 ºC) R ( 200 RRO 0.5 E A) µ ( 150 URE T I DD A 0 100 EMPER T 1SPS –0.5 50 –1.0 0
006
–70 –50 –30 –10 10 30 50 70 90 110 130 150 170 190 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
009
TEMPERATURE (ºC)
06791-
SUPPLY VOLTAGE (V)
06791- Figure 5. Temperature Accuracy at 5 V Figure 8. Operating Supply Current vs. Supply Voltage
350 6 300 5V CONTINUOUS CONVERSION 5 250 3V CONTINUOUS CONVERSION A) 4 µ ( ) 200 DD A (µ N I 3 W I DD 150 DO HUT 2 S 100 5V 1SPS 3V 1SPS 1 50 0 0 –60 –40 –20 0 20 40 60 80 100 120 140 160 180
007
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
010
TEMPERATURE (°C) SUPPLY VOLTAGE (V)
06791- 06791- 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 SPI Timing Specifications Absolute Maximum Ratings ESD Caution Pad Configuration and Function Descriptions Die Bond Pad Coordinates Typical Performance Characteristics Theory of Operation Circuit Description Converter Architecture Normal Mode (Continuous Conversion 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 Status Register Configuration Register Temperature Value Register ID Register TCRIT Setpoint Register THYST Setpoint Register THIGH Setpoint Register TLOW Setpoint Register Serial Interface SPI Command Byte Writing Data Reading Data Interfacing to DSPs or Microcontrollers Resetting the Serial Interface INT and CT Outputs Undertemperature and Overtemperature Detection Comparator Mode Interrupt Mode Redundant Critical Generator Applications Information Thermal Response Time Supply Decoupling Powering from a Switching Regulator Temperature Monitoring Quick Guide to Measuring Temperature Outline Dimensions Ordering Guide Automotive Products