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ADT7311WTRZ-RL

更新时间： 2024-11-22 19:31:19
品牌 Logo 应用领域
亚德诺 - ADI 输出元件传感器换能器
页数 文件大小 规格书
25页 419K
描述
Automotive, ±0.5°C Accurate, 16-Bit Digital SPI Temperature Sensor

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ADT7311WTRZ-RL 数据手册

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Automotive, ± ±0.5° Aꢀꢀuꢁrte, ꢂ16-it  
Digitrl SPI Tempeꢁrtuꢁe Sensoꢁ  
Drtr Sheet  
ADT73ꢂꢂ  
FEATURES  
GENERAL DESCRIPTION  
Qualified for automotive applications  
High performance  
Temperature accuracy  
0.ꢀ5C from −405C to +10ꢀ5C (2.7 V to 3.6 V)  
0.45C from −405C to +10ꢀ5C (3.0 V)  
16-bit temperature resolution: 0.00785C  
Fast first conversion on power-up of 6 ms  
Easy implementation  
The ADT7311 is a high accuracy digital temperature sensor  
in a narrow 8-lead SOIC package. It contains a band gap  
temperature reference and a 16-bit ADC to monitor and digitize  
the temperature to a 0.0078°C resolution. The ADC resolution,  
by default, is set to 13 bits (0.0625°C). The ADC resolution is a  
user programmable mode that can be changed through the  
serial interface.  
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  
The ADT7311 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  
typically 210 μA. The ADT7311 has a shutdown mode that  
powers down the device and offers a shutdown current of  
typically 2 μA. The ADT7311 is rated for operation over the  
−40°C to +150°C temperature range.  
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 range: −405C to +1ꢀ05C  
Voltage range: 2.7 V to ꢀ.ꢀ V  
Programmable interrupts  
Critical overtemperature interrupt  
Overtemperature/undertemperature interrupt  
SPI-compatible interface  
8-lead narrow SOIC RoHS-compliant package  
PRODUCT HIGHLIGHTS  
APPLICATIONS  
1. Ease of use, no calibration or correction required by the user.  
2. Low power consumption.  
Battery management  
Climate control and infotainment  
Lighting  
Powertrain  
3. Excellent long-term stability and reliability.  
4. Packaged in an 8-lead SOIC, RoHS-compliant package.  
Thermocouple cold junction compensation  
GPS  
FUNCTIONAL BLOCK DIAGRAM  
1
2
3
4
SCLK  
DOUT  
ADT7311  
INTERNAL  
OSCILLATOR  
INTERNAL  
REFERENCE  
DIN  
CS  
6
5
CT  
T
T
T
CRIT  
HIGH  
LOW  
Σ-∆  
MODULATOR  
TEMPERATURE  
SENSOR  
TEMPERATURE  
VALUE  
CONFIGURATION,  
STATUS, AND  
INT  
REGISTER  
ID REGISTERS  
T
T
HYST  
REGISTER  
CRIT  
REGISTER  
FILTER  
LOGIC  
7
8
GND  
T
T
HIGH  
REGISTER  
LOW  
REGISTER  
V
DD  
Figure 1.  
Rev. 0  
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  
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 registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.461.3113  
www.analog.com  
©2011 Analog Devices, Inc. All rights reserved.  
 
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ADT7311WTRZ-RL 替代型号

型号 品牌 替代类型 描述 数据表
ADT7311WTRZ ADI

完全替代

 16-Bit Digital SPI Temperature Sensor
ADT7311WTRZ-RL7 ADI

完全替代

 Automotive, ±0.5°C Accurate, 16-Bit D

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