Overview
The TMP37GRTZ-REEL7 is a low-voltage, precision temperature sensor produced by Analog Devices Inc. This device is part of the TMP35/TMP36/TMP37 family, which provides a voltage output that is linearly proportional to the Celsius temperature. The TMP37 is specifically designed for applications over the range of 5°C to 100°C, making it suitable for various thermal monitoring and control systems.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Temperature Range | −40°C to +125°C (specified), up to +150°C (with reduced accuracy) |
| Output Scale Factor | 20 mV/°C |
| Output Voltage at 25°C | 500 mV |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Quiescent Current | Less than 50 µA |
| Shutdown Current | Less than 0.5 µA |
| Package Type | 5-Lead SOT-23 |
| Accuracy | ±2°C over the −40°C to +125°C range |
| Linearity | ±0.5°C (typical) |
| Self-Heating | Less than 0.1°C in still air |
Key Features
- Low voltage operation (2.7 V to 5.5 V)
- Calibrated directly in °C with a 20 mV/°C scale factor
- High accuracy with ±2°C over the specified temperature range
- Low self-heating and quiescent current
- Shutdown function to reduce power consumption
- Stable with large capacitive loads
- Qualified for automotive applications
Applications
- Environmental control systems
- Thermal protection systems
- Industrial process control
- Fire alarms
- Power system monitors
- CPU thermal management
Q & A
- What is the operating temperature range of the TMP37GRTZ-REEL7? The TMP37GRTZ-REEL7 operates from −40°C to +125°C, with extended operation up to +150°C with reduced accuracy.
- What is the output scale factor of the TMP37GRTZ-REEL7? The output scale factor is 20 mV/°C.
- What is the typical output voltage at 25°C for the TMP37GRTZ-REEL7? The output voltage at 25°C is 500 mV.
- What is the supply voltage range for the TMP37GRTZ-REEL7? The supply voltage range is from 2.7 V to 5.5 V.
- How much quiescent current does the TMP37GRTZ-REEL7 consume? The quiescent current is less than 50 µA.
- What is the shutdown current of the TMP37GRTZ-REEL7? The shutdown current is less than 0.5 µA.
- In what package type is the TMP37GRTZ-REEL7 available? The TMP37GRTZ-REEL7 is available in a 5-Lead SOT-23 package.
- What is the accuracy of the TMP37GRTZ-REEL7 over its specified temperature range? The accuracy is ±2°C over the −40°C to +125°C range.
- Is the TMP37GRTZ-REEL7 qualified for automotive applications? Yes, it is qualified for automotive applications.
- How much self-heating does the TMP37GRTZ-REEL7 exhibit? The self-heating is less than 0.1°C in still air.
