Overview
The TMP35GRT-REEL7 is a low voltage, precision centigrade temperature sensor produced by Analog Devices Inc. It is part of the TMP35/TMP36/TMP37 series, which are known for their high accuracy and low power consumption. The TMP35 is functionally compatible with the LM35/LM45 and provides a voltage output that is linearly proportional to the Celsius temperature. This sensor operates within a temperature range of 10°C to 125°C and is suitable for various applications requiring precise temperature measurement.
Key Specifications
| Parameter | Rating/Value |
|---|---|
| Supply Voltage | 2.7 V to 5.5 V |
| Output Voltage at 25°C | 250 mV |
| Output Scale Factor | 10 mV/°C |
| Accuracy | ±2°C over −40°C to +125°C range |
| Linearity | ±0.5°C typical |
| Quiescent Current | < 50 µA |
| Shutdown Current | < 0.5 µA |
| Operating Temperature Range | −40°C to +125°C (operation to +150°C with reduced accuracy) |
| 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 (less than 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 TMP35GRT-REEL7?
The TMP35GRT-REEL7 operates within a voltage range of 2.7 V to 5.5 V.
- What is the output voltage at 25°C for the TMP35GRT-REEL7?
The output voltage at 25°C is 250 mV.
- What is the accuracy of the TMP35GRT-REEL7 over its operating temperature range?
The accuracy is ±2°C over the −40°C to +125°C range.
- What are the available package types for the TMP35GRT-REEL7?
The available package types are 3-lead TO-92, 8-lead SOIC_N, and 5-lead SOT-23.
- Does the TMP35GRT-REEL7 have a shutdown feature?
Yes, it has a shutdown function that reduces the supply current to less than 0.5 µA.
- What is the quiescent current of the TMP35GRT-REEL7?
The quiescent current is less than 50 µA.
- Is the TMP35GRT-REEL7 suitable for automotive applications?
Yes, it is qualified for automotive applications.
- What is the linearity of the TMP35GRT-REEL7?
The linearity is ±0.5°C typical.
- Can the TMP35GRT-REEL7 operate with large capacitive loads?
Yes, it is stable with large capacitive loads.
- What are some common applications of the TMP35GRT-REEL7?
Common applications include environmental control systems, thermal protection, industrial process control, fire alarms, power system monitors, and CPU thermal management.
