ADT7481ARMZ-1R7

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Temperature Sensors - Analog and Digital Output

Temperature sensors are devices used to measure temperatures of an object or environment. Temperature sensors come in two forms: analog and digital output. Analog output sensors provide a continuous signal that is proportional to the temperature while digital output temperature sensors are typically used to provide cutoff temperatures that are either exceeded or not. A well-known example of an analog output sensor is the ADT7481ARMZ-1R7 temperature sensor. In this article we will discuss the application field and working principles of the ADT7481ARMZ-1R7 temperature sensor.

Application Fields

The ADT7481ARMZ-1R7 temperature sensor is designed for commercial and industrial applications. It is used to measure temperatures in HVAC systems, computer rooms, production assembly areas, and other areas which require continuous temperature monitoring. It can also be used to measure temperature in refrigerators, freezers, or other temperature sensitive areas where accurate temperature control is required.

Working Principle

The ADT7481ARMZ-1R7 temperature sensor is designed to measure temperatures from -40°C to +125°C (-40°F to +257°F). It uses a straight-through LED and photocell emitter/detector pair on a silicon substrate to measure the temperature. As the temperature increases, the photocell becomes less sensitive and as the temperature decreases the photocell becomes more sensitive. These changes in photocell sensitivity are then converted to a proportional analog voltage output.

The ADT7481ARMZ-1R7 temperature sensor also provides a digital output which can be used to set cutoff temperatures. A comparison between a digital reference voltage is used to generate an output signal when the measured temperature is either higher or lower than the specified cutoff temperature. The output signal can then be used to activate cooling or heating systems accordingly.

To provide a very repeatable and stable temperature measurement the ADT7481ARMZ-1R7 temperature sensor is fabricated on a highly advanced CMOS process. This makes the device resistant to noise and drift over time. The ADT7481ARMZ-1R7 temperature sensor has an accuracy of ±1°C and is designed for use in both commercial and industrial applications.

Conclusion

The ADT7481ARMZ-1R7 temperature sensor is a highly accurate analog and digital output temperature sensor designed for commercial and industrial applications. It utilizes an LED/photocell emitter/detector pair on a CMOS silicon substrate to measure temperatures from -40°C to +125°C (-40°F to +257°F) with an accuracy of ±1°C. The ADT7481ARMZ-1R7 also provides a digital output that can be used to activate or deactivate cooling and heating systems. It is a reliable and cost-effective solution for temperature measurement applications.

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