Overview
The LM35 is a precision integrated-circuit temperature sensor with an output voltage that is linearly proportional to the Celsius (Centigrade) temperature. Unlike thermistors, which are non-linear, the LM35 does not require curve fitting or complex calculations. It operates over a temperature range of −55°C to +150°C and features low self-heating, ensuring accurate readings without being affected by its own power consumption.
Key Features ✨
- Calibrated Directly in Celsius: No need for conversion from Kelvin or Fahrenheit.
- Linear Scale Factor: Outputs 10 mV per °C (10 mV/°C).
- No External Calibration Required: Guaranteed accuracy of ±0.5°C at room temperature.
- Wide Operating Voltage: Works reliably from 4V to 30V DC.
- Low Cost: An affordable solution for temperature sensing in DIY and industrial projects.
Technical Specifications
| Feature | Specification |
|---|---|
| Sensor Type | Analog |
| Temperature Range | −55°C to +150°C |
| Accuracy | ±0.5°C (at +25°C) |
| Output Voltage | 10 mV per 1°C |
| Supply Voltage | 4V to 30V DC |
| Drain Current | < 60 µA |
| Package | TO-92 (Transistor-like package) |

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