LM35CAZ/NOPB

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Temperature sensors aredevices used to measure the temperature of a system. Temperature sensors come in all shapes and sizes. They range from the common thermistor and RTD which are analog devices to digital devices such as the LM35CAZ/NOPB. This article will cover the application field and working principle of the LM35CAZ/NOPB temperature sensor.

The LM35CAZ/NOPB is a digital temperature sensor which comes in a small, 8-pin, metal-can package. It has a wide range of working temperature which ranges from -40°C to +105°C and high accuracy of ±1°C. It is widely used in industrial and commercial applications due to its reliable and accurate performance.

The LM35CAZ/NOPB\'s application field involves measuring temperature in various systems like refrigerators, air conditioners, heaters, and ovens. It is also used in medical equipment, automotive engines, and industrial process applications.

The working principle of the LM35CAZ/NOPB temperature sensor is based on a thermistor. A thermistor consists of a semiconductor material such as silicon or germanium which has a variable resistance to temperature changes. When the temperature changes, the resistance of the thermistor changes as well. This resistance change is converted into an electrical output which can be measured and recorded by the temperature sensor.

The LM35CAZ/NOPB uses a Wheatstone bridge circuit to measure the resistance change of the thermistor. This circuit consists of four resistors which create an electrical bridge. When a temperature change occurs, the resistance values of the four resistors change accordingly. The output voltage of the circuit is proportional to the temperature change.

The output voltage of the Wheatstone bridge circuit is then converted into a digital signal (1s and 0s) by an analog-to-digital converter (ADC). The ADC takes the analog voltage and converts it into a digital signal, which can then be read by a microcontroller. The LM35CAZ/NOPB temperature sensor is compatible with a wide range of microcontrollers and can be easily integrated into an application.

The LM35CAZ/NOPB temperature sensor is an accurate and reliable device for measuring temperature in various applications. Its wide range of working temperature and high accuracy make it a popular choice for industrial and commercial use. The Wheatstone bridge circuit and the ADC converts the thermistor’s resistance changes into a digital output which can be easily read by a microcontroller.

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