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| 型号： | ADT7310TRZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/24页 |
| 文件大小： | 393K |
| 描述： | IC TEMP SENS 16B DGTL SPI 8SOIC |
| 标准包装： | 2,500 |
| 功能： | 温度监控系统（传感器） |
| 传感器类型： | 内部 |
| 感应温度： | -55°C ~ 150°C |
| 精确度： | ±0.5°C |
| 拓扑： | ADC（三角积分型），振荡器，寄存器库 |
| 输出类型： | SPI? |
| 输出警报： | 是 |
| 输出风扇： | 无 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -55°C ~ 150°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 带卷 (TR) |
?.5癈 Accurate, 16-Bit
Di ital SPI Tem erature Sensor
Data Sheet
ADT7310
Rev. A
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.
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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
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FEATURES
High performance
Temperature accuracy
?.5癈 from 40癈 to +105癈 (2.7 V to 3.6 V)
?.4癈 from 40癈 to +105癈 (3.0 V)
16-bit temperature resolution: 0.0078癈
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 礧 typical at 3.3 V in normal mode
7 礧 typical at 3.3 V in shutdown mode
Wide operating ranges
Temperature range: 55癈 to +150癈
Voltage range: 2.7 V to 5.5 V
Programmable interrupts
Critical overtemperature interrupt
Overtemperature/undertemperature interrupt
SPI-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 ADT7310 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癈 resolution. The ADC resolution,
by default, is set to 13 bits (0.0625 癈). This can be changed
to 16 bits (0.0078 癈) by setting Bit 7 in the configuration
register (Register Address 0x01).
The ADT7310 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 糀. The ADT7310 has a shutdown mode that
powers down the device and offers a shutdown current of
typically 2 糀. The ADT7310 is rated for operation over the
55癈 to +150癈 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癈. 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.
FUNCTIONAL BLOCK DIAGRAM
INTERNAL
REFERENCE
8
7
TEMPERATURE
SENSOR
T
HIGH
T
CRIT
T
LOW
INTERNAL
OSCILLATOR
FILTER
LOGIC
?SPAN class="pst ADT7310TRZ_2301899_10">-?/SPAN>
MODULATOR
V
DD
GND
6
5
CT
INT
3
4
1
2
ADT7310
CS
TEMPERATURE
VALUE
REGISTER
CONFIGURATION
AND STATUS
REGISTERS
T
LOW
REGISTER
T
CRIT
REGISTER
T
HYST
REGISTER
T
HIGH
REGISTER
CLK
OUT
DIN
Figure 1.
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