ADT7312WCZ-PT7
板上安装温度传感器 0.5"C ACC DIGITAL TEMP SENSOR SPI I/face
Product Details
The ADT7312 is a ±1°C accurate digital temperature sensor that operates over a very wide temperature range, −55°C to +175°C available in die form only. It contains an internal band gap reference, a temperature sensor, and a 16-bit analog-to-digital converter ADC to monitor and digitize the temperature to a resolution of 0.0078°C. 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.
The ADT7312 is guaranteed to operate over supply voltages from 2.7 V to 5.5 V. At 3.6 V operation, the average supply current is typically 245 μA. The ADT7312 has a shutdown mode that powers down the device, resulting in a typical shutdown current of 2.5 μA at 3.6 V. The ADT7312 is rated for operation over the −55°C to +175°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 pin and the CT pin can operate in either comparator or interrupt mode.
**Product Highlights**
1. Ease of use, no calibration or correction required.
2. Low power consumption.
3. Excellent long-term stability and reliability.
4. Qualified for automotive applications.
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**Applications**
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- Automotive
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- High temperature monitoring
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- High temperature thermal protection
### Features and Benefits
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- Qualified for automotive applications
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- Temperature accuracy:
±1°C from −55°C to +175°C 2.7V to 3.3V
16-bit temperature resolution: 0.0078°C
Fast first temperature conversion on power-up of 6 ms
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- Easy implementation:
No temperature calibration or correction required
No linearity correction required
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- Low power:
Power-saving 1 sample per second SPS mode
880 μW typical at 3.6 V in normal mode
9 μW typical at 3.6 V in shutdown mode
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- Wide operating ranges:
Temperature range: −55°C to +175°C
Voltage range: 2.7 V to 5.5 V
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- Programmable interrupts:
Critical overtemperature interrupt
Overtemperature/undertemperature interrupt
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- SPI-compatible interface
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- Available in die form only