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Temperature Sensor. ADT7410 Datasheet

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Temperature Sensor. ADT7410 Datasheet






ADT7410 Sensor. Datasheet pdf. Equivalent




ADT7410 Sensor. Datasheet pdf. Equivalent





Part

ADT7410

Description

16-Bit Digital I2C Temperature Sensor



Feature


Data Sheet ±0.5°C Accurate, 16-Bit Di gital I2C Temperature Sensor ADT7410 F EATURES High performance Temperature ac curacy ±0.5°C from −40°C to +105° C (2.7 V to 3.6 V) ±0.4°C from −40 C to +105°C (3.0 V) 16-bit temperatur e resolution: 0.0078°C Fast first temp erature conversion on power-up of 6 ms Easy implementation No temperature cali bration/correction required by us.
Manufacture

Analog Devices

Datasheet
Download ADT7410 Datasheet


Analog Devices ADT7410

ADT7410; er No linearity correction required Low power Power saving 1 sample per second (SPS) mode 700 µW typical at 3.3 V in normal mode 7 µW typical at 3.3 V in s hutdown mode Wide operating ranges Temp erature range: −55°C to +150°C Volt age range: 2.7 V to 5.5 V Programmable interrupts Critical overtemperature int errupt Overtemperature/undertemperature interrupt I2C-compatibl.


Analog Devices ADT7410

e interface 8-lead narrow SOIC RoHS-comp liant package APPLICATIONS Medical equi pment Environmental control systems Com puter thermal monitoring Thermal protec tion Industrial process control Power s ystem monitors Hand-held applications GENERAL DESCRIPTION The ADT7410 is a hi gh accuracy digital temperature sensor in a narrow SOIC package. It contains a band gap temperat.


Analog Devices ADT7410

ure reference and a 13-bit ADC to monito r and digitize the temperature to a 0.0 625°C resolution. The ADC resolution, by default, is set to 13 bits (0.0625° C). This can be changed to 16 bits (0.0 078°C) by setting Bit 7 in the configu ration register (Register Address 0x03) . The ADT7410 is guaranteed to operate over supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V.

Part

ADT7410

Description

16-Bit Digital I2C Temperature Sensor



Feature


Data Sheet ±0.5°C Accurate, 16-Bit Di gital I2C Temperature Sensor ADT7410 F EATURES High performance Temperature ac curacy ±0.5°C from −40°C to +105° C (2.7 V to 3.6 V) ±0.4°C from −40 C to +105°C (3.0 V) 16-bit temperatur e resolution: 0.0078°C Fast first temp erature conversion on power-up of 6 ms Easy implementation No temperature cali bration/correction required by us.
Manufacture

Analog Devices

Datasheet
Download ADT7410 Datasheet




 ADT7410
Data Sheet
±0.5°C Accurate, 16-Bit Digital
I2C Temperature Sensor
ADT7410
FEATURES
High performance
Temperature accuracy
±0.5°C from −40°C to +105°C (2.7 V to 3.6 V)
±0.4°C from −40°C to +105°C (3.0 V)
16-bit temperature resolution: 0.0078°C
Fast first temperature conversion on power-up of 6 ms
Easy implementation
No temperature calibration/correction required by user
No linearity correction required
Low power
Power saving 1 sample per second (SPS) mode
700 µW typical at 3.3 V in normal mode
7 µW typical at 3.3 V in shutdown mode
Wide operating ranges
Temperature range: −55°C to +150°C
Voltage range: 2.7 V to 5.5 V
Programmable interrupts
Critical overtemperature interrupt
Overtemperature/undertemperature interrupt
I2C-compatible interface
8-lead narrow SOIC RoHS-compliant package
APPLICATIONS
Medical equipment
Environmental control systems
Computer thermal monitoring
Thermal protection
Industrial process control
Power system monitors
Hand-held applications
GENERAL DESCRIPTION
The ADT7410 is a high accuracy digital temperature sensor in a
narrow SOIC package. It contains a band gap temperature reference
and a 13-bit ADC to monitor and digitize the temperature to a
0.0625°C resolution. The ADC resolution, by default, is set to
13 bits (0.0625°C). This can be changed to 16 bits (0.0078°C) by
setting Bit 7 in the configuration register (Register Address 0x03).
The ADT7410 is guaranteed to operate over supply voltages from
2.7 V to 5.5 V. Operating at 3.3 V, the average supply current is typi-
cally 210 μA. The ADT7410 has a shutdown mode that powers
down the device and offers a shutdown current of typically 2 μA.
The ADT7410 is rated for operation over the −55°C to +150°C
temperature range.
Pin A0 and Pin A1 are available for address selection, giving the
ADT7410 four possible I2C addresses. The CT pin is an open-
drain output that becomes active when the temperature exceeds
a programmable critical temperature limit. The default critical
temperature limit is 147°C. The INT pin is also an open-drain
output that becomes active when the temperature exceeds a
programmable limit. The INT and CT pins can operate in either
comparator or interrupt mode.
TEMPERATURE
VALUE
REGISTER
CONFIGURATION
REGISTER
TCRIT
REGISTER
THIGH
REGISTER
TLOW
REGISTER
THYST
REGISTER
FUNCTIONAL BLOCK DIAGRAM
VDD
8
ADT7410
INTERNAL
OSCILLATOR
TCRIT
INTERNAL
REFERENCE
TEMPERATURE
SENSOR
Σ-Δ
MODULATOR
THIGH
6 CT
5 INT
POINTER
REGISTER
FILTER
LOGIC
TLOW
A0 3
A1 4
I2C INTERFACE
1 SCL
2 SDA
7
GND
Figure 1.
Rev. C
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rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2009–2017 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com




 ADT7410
ADT7410
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
I2C Timing Specifications............................................................ 4
Absolute Maximum Ratings............................................................ 5
ESD Caution.................................................................................. 5
Pin Configurations and Function Descriptions ........................... 6
Typical Performance Characteristics ............................................. 7
Theory of Operation ........................................................................ 9
Circuit Information...................................................................... 9
Converter Details.......................................................................... 9
Temperature Measurement ......................................................... 9
One-Shot Mode .......................................................................... 10
1 SPS Mode.................................................................................. 10
Shutdown ..................................................................................... 11
Fault Queue ................................................................................. 11
Temperature Data Format ......................................................... 12
Temperature Conversion Formulas ......................................... 12
Registers ........................................................................................... 13
Address Pointer Register ........................................................... 13
REVISION HISTORY
9/2017—Rev. B to Rev. C
Removed 16-Lead LFCSP............................................. Throughout
Changes to Table 3............................................................................ 5
Deleted Figure 5; Renumbered Sequentially................................. 6
Changes to Table 4............................................................................ 6
Changes to Table 6.......................................................................... 13
Updated Outline Dimensions, Deleted Figure 24 ...................... 24
Changes to Ordering Guide .......................................................... 24
7/2016—Rev. A to Rev. B
Added 16-Lead LFCSP.......................................................Universal
Changes to Table 3............................................................................ 5
Added Figure 5; Renumbered Sequentially .................................. 6
Changes to Table 4............................................................................ 6
Changes to Table 9.......................................................................... 13
Changes to Table 10........................................................................ 14
Changes to Interrupt Mode Section and Figure 20.................... 21
Data Sheet
Temperature Value Registers .................................................... 13
Status Register............................................................................. 14
Configuration Register .............................................................. 14
THIGH Setpoint Registers............................................................. 15
TLOW Setpoint Registers.............................................................. 15
TCRIT Setpoint Registers.............................................................. 15
THYST Setpoint Register............................................................... 16
ID Register................................................................................... 16
Serial Interface ................................................................................ 17
Serial Bus Address ...................................................................... 17
Writing Data ............................................................................... 18
Reading Data............................................................................... 19
Reset ............................................................................................. 19
General Call ................................................................................ 19
INT and CT Outputs...................................................................... 21
Undertemperature and Overtemperature Detection ............ 21
Applications Information .............................................................. 23
Thermal Response Time ........................................................... 23
Supply Decoupling ..................................................................... 23
Temperature Monitoring........................................................... 23
Outline Dimensions ....................................................................... 24
Ordering Guide .......................................................................... 24
Changes to Figure 21...................................................................... 22
Updated Outline Dimensions ....................................................... 24
Changes to Ordering Guide .......................................................... 24
12/2011—Rev. 0 to Rev. A
Changes to Features Section ............................................................1
Changes to Table 1.............................................................................3
Changes to Figure 5...........................................................................7
Changes to One-Shot Mode Section and 1 SPS Mode
Section.............................................................................................. 10
Changes to Shutdown Section ...................................................... 11
Changes to Table 8 and Table 9 .................................................... 13
Changes to Table 10 and Table 11 ................................................ 14
Changes to Ordering Guide .......................................................... 24
4/2009—Revision 0: Initial Version
Rev. C | Page 2 of 24




 ADT7410
Data Sheet
ADT7410
SPECIFICATIONS
TA = −55°C to +150°C, VDD = 2.7 V to 5.5 V, unless otherwise noted.
Table 1.
Parameter
Min
TEMPERATURE SENSOR AND ADC
Accuracy1
Typ
−0.05
ADC Resolution
13
16
Temperature Resolution
13-Bit
16-Bit
Temperature Conversion Time
Fast Temperature Conversion Time
1 SPS Conversion Time
Temperature Hysteresis
Repeatability 3
DC PSRR
DIGITAL OUTPUTS (OPEN DRAIN)
High Output Leakage Current, IOH
Output High Current
Output Low Voltage, VOL
Output High Voltage, VOH
Output Capacitance, COUT
DIGITAL INPUTS
Input Current
Input Low Voltage, VIL
Input High Voltage, VIH
SCL, SDA Glitch Rejection
Pin Capacitance
POWER REQUIREMENTS
Supply Voltage
Supply Current
At 3.3 V
At 5.5 V
1 SPS Current
At 3.3 V
At 5.5 V
Shutdown Current
At 3.3 V
At 5.5 V
Power Dissipation Normal Mode
Power Dissipation 1 SPS
0.7 × VDD
0.7 × VDD
2.7
0.0625
0.0078
240
6
60
±0.002
±0.015
0.1
0.1
3
50
5
210
250
46
65
2.0
5.2
700
150
Max
±0.42
±0.44
±0.5
±0.5
±0.7
±0.8
±1.0
5
1
0.4
±1
0.4
10
5.5
250
300
15
25
Unit Test Conditions/Comments
°C
TA = −40°C to +105°C, VDD = 3.0 V
°C
TA = −40°C to +105°C, VDD = 2.7 V to 3.3 V
°C
TA = −55°C to +125°C, VDD = 3.0 V
°C
TA = −40°C to +105°C, VDD = 2.7 V to 3.6 V
°C
TA = −55°C to +150°C, VDD = 2.7 V to 3.6 V
°C
TA = −40°C to +105°C, VDD = 4.5 V to 5.5 V
°C
TA = −55°C to +150°C, VDD = 2.7 V to 5.5 V
Bits Twos complement temperature value of the sign bit
plus 12 ADC bits (power-up default resolution)
Bits Twos complement temperature value of the sign bit
plus 15 ADC bits (Bit 7 = 1 in the configuration register)
°C
13-bit resolution (sign + 12-bit)
°C
16-bit resolution (sign + 15-bit)
ms Continuous conversion and one-shot conversion modes
ms First conversion on power-up only
ms Conversion time for 1 SPS mode
°C
Temperature cycle = 25°C to 125°C and back to 25°C
°C
TA = 25°C
°C/V TA = 25°C
µA CT and INT pins pulled up to 5.5 V
mA VOH = 5.5 V
V
IOL = 2 mA at 5.5 V, IOL = 1 mA at 3.3 V
V
pF
µA
VIN = 0 V to VDD
V
V
ns
Input filtering suppresses noise spikes of less than 50 ns
pF
V
µA
Peak current while converting, I2C interface inactive
µA
Peak current while converting, I2C interface inactive
µA
VDD = 3.3 V, 1 SPS mode, TA = 25°C
µA
VDD = 5.5 V, 1 SPS mode, TA = 25°C
µA Supply current in shutdown mode
µA Supply current in shutdown mode
µW VDD = 3.3 V, normal mode at 25°C
µW Power dissipated for VDD = 3.3 V, TA = 25°C
1 Accuracy includes lifetime drift.
2 The equivalent 3 σ limits are ±0.33°C. This 3 σ specification is provided to enable comparison with other vendors who use these limits.
3 Based on a floating average of 10 readings.
Rev. C | Page 3 of 24






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