Overview
The TMP35GT9-REEL, produced by Analog Devices Inc., is a low-voltage, precision centigrade temperature sensor. It is part of the TMP35/TMP36/TMP37 family, which provides a voltage output that is linearly proportional to the Celsius temperature. The TMP35 is functionally compatible with the LM35/LM45 and is designed for single-supply operation from 2.7 V to 5.5 V. This sensor is known for its high accuracy, low self-heating, and stable performance over a wide temperature range.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 2.7 V to 5.5 V |
| Output Scale Factor | 10 mV/°C |
| Output Voltage at 25°C | 250 mV |
| Accuracy | ±2°C over −40°C to +125°C |
| Linearity | ±0.5°C (typ) |
| Quiescent Current | < 50 µA |
| Shutdown Current | < 0.5 µA |
| Operating Temperature Range | −40°C to +125°C |
| Package Types | 3-lead TO-92, 8-lead SOIC_N, 5-lead SOT-23 |
Key Features
- Low voltage operation (2.7 V to 5.5 V)
- Calibrated directly in °C with a 10 mV/°C scale factor
- High accuracy with ±2°C over the −40°C to +125°C range
- Low self-heating (< 0.1°C in still air)
- Shutdown function to reduce supply current to less than 0.5 µA
- Stable with large capacitive loads
- Qualified for automotive applications
Applications
- Environmental control systems
- Thermal protection
- Industrial process control
- Fire alarms
- Power system monitors
- CPU thermal management
Q & A
- What is the operating voltage range of the TMP35GT9-REEL? The operating voltage range is from 2.7 V to 5.5 V.
- What is the output scale factor of the TMP35GT9-REEL? The output scale factor is 10 mV/°C.
- What is the typical accuracy of the TMP35GT9-REEL over its operating temperature range? The typical accuracy is ±2°C over the −40°C to +125°C range.
- What is the quiescent current of the TMP35GT9-REEL? The quiescent current is less than 50 µA.
- Does the TMP35GT9-REEL have a shutdown feature? Yes, it has a shutdown function that reduces the supply current to less than 0.5 µA.
- In what packages is the TMP35GT9-REEL available? It is available in 3-lead TO-92, 8-lead SOIC_N, and 5-lead SOT-23 packages.
- What are some common applications of the TMP35GT9-REEL? Common applications include environmental control systems, thermal protection, industrial process control, fire alarms, power system monitors, and CPU thermal management.
- Is the TMP35GT9-REEL qualified for automotive applications? Yes, it is qualified for automotive applications.
- What is the maximum operating temperature of the TMP35GT9-REEL? The maximum operating temperature is +125°C, with operation possible up to +150°C with reduced accuracy.
- How does the TMP35GT9-REEL handle large capacitive loads? It is stable with large capacitive loads.
