0.5C Accurate, 16-Bit Digital 2 I C Temperature Sensor Data Sheet ADT7410 FEATURES GENERAL DESCRIPTION High performance The ADT7410 is a high accuracy digital temperature sensor in a Temperature accuracy narrow SOIC package. It contains a band gap temperature reference 0.5C from 40C to +105C (2.7 V to 3.6 V) and a 13-bit ADC to monitor and digitize the temperature to a 0.4C from 40C to +105C (3.0 V) 0.0625C resolution. The ADC resolution, by default, is set to 16-bit temperature resolution: 0.0078C 13 bits (0.0625C). This can be changed to 16 bits (0.0078C) by Fast first temperature conversion on power-up of 6 ms setting Bit 7 in the configuration register (Register Address 0x03). Easy implementation The ADT7410 is guaranteed to operate over supply voltages from No temperature calibration/correction required by user 2.7 V to 5.5 V. Operating at 3.3 V, the average supply current is typi- No linearity correction required cally 210 A. The ADT7410 has a shutdown mode that powers Low power down the device and offers a shutdown current of typically 2 A. Power saving 1 sample per second (SPS) mode The ADT7410 is rated for operation over the 55C to +150C 700 W typical at 3.3 V in normal mode temperature range. 7 W typical at 3.3 V in shutdown mode Wide operating ranges Pin A0 and Pin A1 are available for address selection, giving the 2 Temperature range: 55C to +150C ADT7410 four possible I C addresses. The CT pin is an open- Voltage range: 2.7 V to 5.5 V drain output that becomes active when the temperature exceeds Programmable interrupts a programmable critical temperature limit. The default critical Critical overtemperature interrupt temperature limit is 147C. The INT pin is also an open-drain Overtemperature/undertemperature interrupt output that becomes active when the temperature exceeds a 2 I C-compatible interface programmable limit. The INT and CT pins can operate in either 8-lead narrow SOIC RoHS-compliant package comparator or interrupt mode. APPLICATIONS Medical equipment Environmental control systems Computer thermal monitoring Thermal protection Industrial process control Power system monitors Hand-held applications FUNCTIONAL BLOCK DIAGRAM V DD 8 TEMPERATURE ADT7410 VALUE REGISTER INTERNAL 6 CT OSCILLATOR CONFIGURATION T CRIT REGISTER INTERNAL T REFERENCE CRIT REGISTER 5 INT - T TEMPERATURE T HIGH HIGH MODULATOR SENSOR REGISTER T LOW REGISTER T LOW T POINTER FILTER HYST REGISTER LOGIC REGISTER A0 3 1 SCL 2 I C INTERFACE 4 2 A1 SDA 7 GND Figure 1. Rev. C Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20092017 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 06560-001ADT7410 Data Sheet TABLE OF CONTENTS Temperature Value Registers .................................................... 13 Features .............................................................................................. 1 Status Register ............................................................................. 14 Applications ....................................................................................... 1 Configuration Register .............................................................. 14 General Description ......................................................................... 1 THIGH Setpoint Registers ............................................................. 15 Functional Block Diagram .............................................................. 1 TLOW Setpoint Registers .............................................................. 15 Revision History ............................................................................... 2 T Setpoint Registers .............................................................. 15 CRIT Specifications ..................................................................................... 3 T Setpoint Register ............................................................... 16 2 HYST I C Timing Specifications ............................................................ 4 ID Register................................................................................... 16 Absolute Maximum Ratings ............................................................ 5 Serial Interface ................................................................................ 17 ESD Caution .................................................................................. 5 Serial Bus Address ...................................................................... 17 Pin Configurations and Function Descriptions ........................... 6 Writing Data ............................................................................... 18 Typical Performance Characteristics ............................................. 7 Reading Data ............................................................................... 19 Theory of Operation ........................................................................ 9 Reset ............................................................................................. 19 Circuit Information ...................................................................... 9 General Call ................................................................................ 19 Converter Details .......................................................................... 9 INT and CT Outputs ...................................................................... 21 Temperature Measurement ......................................................... 9 Undertemperature and Overtemperature Detection ............ 21 One-Shot Mode .......................................................................... 10 Applications Information .............................................................. 23 1 SPS Mode .................................................................................. 10 Thermal Response Time ........................................................... 23 Shutdown ..................................................................................... 11 Supply Decoupling ..................................................................... 23 Fault Queue ................................................................................. 11 Temperature Monitoring ........................................................... 23 Temperature Data Format ......................................................... 12 Outline Dimensions ....................................................................... 24 Temperature Conversion Formulas ......................................... 12 Ordering Guide .......................................................................... 24 Registers ........................................................................................... 13 Address Pointer Register ........................................................... 13 REVISION HISTORY 9/2017Rev. B to Rev. C Changes to Figure 21 ...................................................................... 22 Removed 16-Lead LFCSP ............................................. Throughout Updated Outline Dimensions ....................................................... 24 Changes to Table 3 ............................................................................ 5 Changes to Ordering Guide .......................................................... 24 Deleted Figure 5 Renumbered Sequentially ................................. 6 Changes to Table 4 ............................................................................ 6 12/2011Rev. 0 to Rev. A Changes to Table 6 .......................................................................... 13 Changes to Features Section ............................................................ 1 Changes to Table 1 ............................................................................. 3 Updated Outline Dimensions, Deleted Figure 24 ...................... 24 Changes to Ordering Guide .......................................................... 24 Changes to Figure 5 ........................................................................... 7 Changes to One-Shot Mode Section and 1 SPS Mode 7/2016Rev. A to Rev. B Section .............................................................................................. 10 Added 16-Lead LFCSP ....................................................... Universal Changes to Shutdown Section ...................................................... 11 Changes to Table 3 ............................................................................ 5 Changes to Table 8 and Table 9 .................................................... 13 Added Figure 5 Renumbered Sequentially .................................. 6 Changes to Table 10 and Table 11 ................................................ 14 Changes to Table 4 ............................................................................ 6 Changes to Ordering Guide .......................................................... 24 Changes to Table 9 .......................................................................... 13 Changes to Table 10 ........................................................................ 14 4/2009Revision 0: Initial Version Changes to Interrupt Mode Section and Figure 20 .................... 21 Rev. C Page 2 of 24