Overview
The TMP37FT9Z is a low-voltage, precision centigrade temperature sensor produced by Analog Devices Inc. It 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 environmental and industrial monitoring tasks.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Temperature Range | 5°C to 100°C | °C |
| Output Scale Factor | 20 mV/°C | mV/°C |
| Output Voltage at 25°C | 500 mV | mV |
| Supply Voltage Range | 2.7 V to 5.5 V | V |
| Supply Current (ON) | < 50 µA | µA |
| Supply Current (Shutdown) | < 0.5 µA | µA |
| Accuracy at 25°C | ±1°C | °C |
| Accuracy over Temperature Range | ±2°C | °C |
| Self-Heating | < 0.1°C in still air | °C |
| Package Types | 3-lead TO-92, 5-lead SOT-23 |
Key Features
- Low voltage operation from 2.7 V to 5.5 V.
- Calibrated directly in °C with an output scale factor of 20 mV/°C.
- High accuracy with ±1°C at 25°C and ±2°C over the −40°C to +125°C range.
- Low self-heating of less than 0.1°C in still air.
- Low output impedance and linear output simplify interfacing to temperature control circuitry and ADCs.
- Shutdown function to reduce supply current to less than 0.5 µA.
- Available in low-cost 3-lead TO-92 and 5-lead SOT-23 surface-mount packages.
Applications
- Environmental control systems.
- Thermal protection systems.
- Industrial process control.
- Fire alarms.
- Power system monitors.
- CPU thermal management.
- Automotive applications.
Q & A
- What is the operating temperature range of the TMP37FT9Z?
The TMP37FT9Z operates over a temperature range of 5°C to 100°C.
- What is the output scale factor of the TMP37FT9Z?
The output scale factor of the TMP37FT9Z is 20 mV/°C.
- What is the output voltage at 25°C for the TMP37FT9Z?
The output voltage at 25°C is 500 mV.
- What is the supply voltage range for the TMP37FT9Z?
The supply voltage range is from 2.7 V to 5.5 V.
- How much current does the TMP37FT9Z consume when in shutdown mode?
The supply current in shutdown mode is less than 0.5 µA.
- What is the typical accuracy of the TMP37FT9Z at 25°C?
The typical accuracy at 25°C is ±1°C.
- What are the available package types for the TMP37FT9Z?
The TMP37FT9Z is available in 3-lead TO-92 and 5-lead SOT-23 surface-mount packages.
- Does the TMP37FT9Z require external calibration?
No, the TMP37FT9Z does not require any external calibration.
- What is the self-heating of the TMP37FT9Z in still air?
The self-heating is less than 0.1°C in still air.
- What are some common applications of the TMP37FT9Z?
Common applications include environmental control systems, thermal protection, industrial process control, fire alarms, power system monitors, and CPU thermal management.
