EVAL-ADT7301EBZ

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Evaluation boards and sensors are used to evaluate the performance of components and systems in various applications. The EVAL-ADT7301EBZ evaluation board is specifically designed for the ADT7301 temperature sensor module by Analog Devices. The board is used to evaluate the ADT7301’s accuracy, power consumption, and more. This article will discuss the application field and working principle of the EVAL-ADT7301EBZ evaluation board.

Application Field

The EVAL-ADT7301EBZ evaluation board is typically used in industrial and commercial applications where temperature measurement is required. It is particularly suited for applications where precise temperature sensing and control are necessary. Because of its small size, the board is also suitable for use in embedded systems and in portable products where interior space is limited.

The ADT7301 includes a Resistor-Capacitor (RC) oscillator circuit to provide a simple digital temperature measurement. It also features a 16bit analog-to-digital converter (ADC) to convert the temperature reading into a digital format. These features allow the board to measure temperatures in the range of -40C to +125C and with an accuracy of +/-1°C.

The board also features two digital outputs: an open-drain “Alert Output” pin and a CMOS “Thermostat Output” pin. When used in combination, these pins can be used to output an alarm or trigger a system response in the event of a temperature change exceeding the user-specified thresholds.

Working Principle

The working principle of the EVAL-ADT7301EBZ board is based on the NTC thermistor temperature sensing element. An NTC thermistor is a type of resistor that changes its resistance and when the temperature of its surroundings changes. The board utilizes this change in resistance to measure temperature.

When the board is powered on, it measures the resistance of the thermistor and converts this value to a temperature reading using the 16bit ADC. The readings are then transferred to the user through the Alert Output and Thermostat Output pins. Furthermore, the board also includes an LED that illuminates to indicate that readings are being taken.

The board can be connected to a PC through its USB connector, allowing the user to view the raw temperature readings as well as the calculated values on the PC’s monitor. This allows for more precise temperature readings and control. Furthermore, the board also includes an additional two-pin header for connecting external temperature sensors, making it possible to use the board in a larger variety of applications with different temperature ranges.

Conclusion

The EVAL-ADT7301EBZ evaluation board is a small and compact device suitable for a wide range of temperature measurement and control applications. It features an RC oscillator circuit, a 16bit ADC, two digital outputs, and a USB connector for connecting to a PC. Furthermore, it also includes a two-pin header for connecting external temperature sensors. All of these features make the EVAL-ADT7301EBZ a reliable and accurate temperature measurement and control board.

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